More than half of all esports hours watched in 2025, 52.9%, came from co-streams rather than official channels (Stream Hatchet, Esports Live Streaming Trends Report 2026). Co-streaming means an independent creator rebroadcasts the official match feed on their own channel and talks over it with their own commentary. The language map is moving just as fast: Hindi-language viewing of the Esports World Cup rose 300% year over year in 2026 (Esports Charts, EWC 2026 viewership recap, via GamesBeat 2026), and Riot Games selected 120 co-streamers across 18 languages for Worlds 2025 (Esports Insider, Worlds 2025 co-streamer coverage 2025). We aggregated data from Stream Hatchet, Esports Charts, Riot Games, the Esports World Cup Foundation, Sports Video Group, the EBU, the AES, the ITU, and peer-reviewed esports research. For overall market size, prize money and headline viewership records, see our broader esports statistics roundup; this page focuses on the voices, languages and signal chain behind the broadcast.
TL;DR
- Co-streams took 52.9% of all esports hours watched in 2025 (Stream Hatchet, Esports Live Streaming Trends Report 2026).
- The Esports World Cup creator program set a 2026 target of 5,000 co-streamers, up from a 2025 cohort of 3,500 (Esports Foundation creator program release 2026).
- Korean overtook English as the most-watched language at LoL Worlds 2025 (Esports Charts, via esports.gg 2025).
- Hindi viewing of the Esports World Cup rose 300% and French viewing 124% in 2026 (Esports Charts, via GamesBeat 2026).
- Worlds 2025 selected 120 co-streamers across 18 languages (Esports Insider, Worlds 2025 co-streamer coverage 2025).
- Riot’s remote broadcast design produces 19 world-feed language versions (Sports Video Group, Project Stryker 2021).
- 239 gamers saw no significant credibility gap between an all-male and a mixed-gender casting pair after controls (Journal of Electronic Gaming and Esports 2023).
- An AI live commentary model won 29.2% of head-to-head comparisons against GPT-4o, versus 19.4% for the best existing streaming commentator model (DirCast, arXiv preprint 2026).
- EBU R 128 sets a -23 LUFS programme loudness target for broadcast (EBU R 128 version 5.0, 2023).
- AES TD1008 recommends -17 LUFS for streamed sports and mixed formats (Radio World, AES TD1008 guidelines explained 2022).
1. Co-Streaming Overtakes the Official Feed
The headline is not that co-streaming exists, it is that it now carries the majority of the audience. Moving from 45% to more than half in a single year means that for most viewers, the “voice” of an esports match is no longer the official caster desk. On Twitch, 82% of co-stream viewers joined the chat at PGL Major Copenhagen 2024, against roughly 18% of official-stream viewers, which explains why publishers keep opening the gates: co-streams deliver a talkative, community-driven audience that official channels struggle to match.
Official channels are not collapsing, though. They kept growing after the crossover, which suggests co-streams mostly add audience instead of simply stealing it. Organizers now formalize the model with paid creator programs.
| Metric | Value | Source |
|---|---|---|
| Share of all esports hours watched that came from co-streaming channels, 2024 | 45% (1.3 billion hours) | Stream Hatchet, Yearly Live Streaming Trends Report 2024 |
| Share of all esports hours watched that came from co-streaming, 2025 (2.7 billion hours tracked across 1.9K events) | 52.9% | Stream Hatchet, Esports Live Streaming Trends Report 2026 |
| First quarter in which co-streamers out-watched official esports channels in hours watched | Q1 2025 (official broadcasts still grew 30% quarter over quarter in Q2 2025) | Stream Hatchet Q2 2025 report, via Esports News UK 2025 |
| PGL Major Copenhagen, March 2024: Twitch viewers taking part in chat on co-streams vs on the official stream | 82% vs roughly 18% (co-streams also took more than 60% of hours watched on the final day) | Digiday, reporting Stream Hatchet data, April 12, 2024 |
| Esports World Cup creator program: co-streamers in the 2025 cohort vs the 2026 target | 3,500 vs 5,000, backed by a $2 million reward pool in 2026 | Esports Foundation creator program release, June 15, 2026 |
Context: the 2024 and 2025 shares come from two different reports by the same tracker, and the full-year report for 2025 uses a slightly different base (see Data watch).
2. Which Titles and Events Lean on Community Casters
Co-streaming share varies widely by title, and the pattern says something about how each community likes to watch. Shooter communities with a few dominant personalities hand most of the audience to creators: co-streamers drew 65.1% of all Call of Duty League 2025 hours watched. Multi-title festivals sit lower overall, but individual games inside them can still tip past 70%.
League organizers are scaling the number of approved voices accordingly. The jump from 30 co-streamers at MSI 2023 to 120 at Worlds 2025 shows Riot treating community casting as a distribution channel, not a threat. If you co-stream yourself, the same tools that shape your on-air voice matter as much as the feed, which is where streamer voice effects come in.
| Metric | Value | Source |
|---|---|---|
| Co-streamer share of Call of Duty League 2025 hours watched (35 million total) | 65.1% | Stream Hatchet, The Top Co-Streamers Promoting Esports and Events, August 2025 |
| Co-streamer share of BLAST.tv Austin Major 2025 hours watched (92 million total), and top co-streamer | 53.6%; Gaules with 14.2 million hours | Stream Hatchet, The Top Co-Streamers Promoting Esports and Events, August 2025 |
| Co-streamer share of Esports World Cup 2025 hours watched: whole event vs the most co-streamed titles | 41.5% overall; Warzone 88%, Counter-Strike 76%, League of Legends 73% | Stream Hatchet, The Esports World Cup 2025 on Live Streaming, 2025 |
| Co-streamers selected for League of Legends Worlds 2025 | 120 across 18 languages | Esports Insider, Worlds 2025 co-streamer coverage, October 10, 2025 |
| Co-streamers announced for MSI 2023, for comparison | 30 | Esports Insider, Worlds 2025 co-streamer coverage, October 10, 2025 |
| Co-streamers listed for the LEC 2025 Winter Split | 29 | Riot Games, LEC 2025 Broadcast Partners and Winter Co-Streams, January 16, 2025 |
Outlier note: the 65.1% Call of Duty League share is concentrated in a few channels; the top co-streamer alone, Scump, accounted for 14.4 million of its 35 million hours in the same analysis.
3. Language Streams: Who Watches in Which Language
Audience demand is fragmenting by language, and English is no longer the default lead. Korean overtook English as the most-watched broadcast language at Worlds 2025, which turns local-language casting from a nice-to-have into the main growth engine.
The Esports World Cup 2026 shows the same shift outside Asia: Hindi and French streams grew far faster than the event overall, and the number of French creators covering the event rose 63%. Smaller language communities can grow fast too: Ukrainian-language esports viewing reached a record in 2025, driven by two Counter-Strike Majors.
| Metric | Value | Source |
|---|---|---|
| Most-watched broadcast language at League of Legends Worlds 2025 | Korean, overtaking English, which led in 2024 | Esports Charts data, via esports.gg, November 9, 2025 |
| Year-over-year growth of Esports World Cup viewing in Hindi vs in French, 2026 vs 2025 | +300% vs +124% | Esports Charts, EWC 2026 viewership recap, via GamesBeat, August 28, 2026 |
| French-language streamers covering the Esports World Cup, 2025 vs 2026 | 122 vs 200 (+63%) | Esports Charts, EWC 2026 viewership recap, via GamesBeat 2026 |
| Mobile Legends viewing at the Esports World Cup 2026 by language, change vs 2025 | Indonesian -8.8%, Tagalog -14.2%, Bahasa Malaysia -40% | Esports Charts, EWC 2026 viewership recap, via GamesBeat 2026 |
| Hours watched on Ukrainian-language esports broadcasts, 2025 vs 2024 | More than 25.16 million vs 19.1 million | Esports Charts data, via dev.ua, January 6, 2026 |
| Peak viewers of Ukrainian-language broadcasts at StarLadder Budapest Major 2025, and global rank of Ukrainian by peak at Counter-Strike tournaments | 116.2 thousand; fourth place worldwide | Esports Charts data, via dev.ua, January 6, 2026 |
Context: none of the trackers above publish Chinese-platform audiences, so Chinese-language viewing is missing from this table.
4. Official Feeds in More Languages
Supply is chasing that demand. Organizers now publish a single “world feed” (the master video and game-sound signal of a match) and let partners and co-streamers add commentary in their own language on top. The Esports World Cup went from 35 broadcast languages in 2025 to 47 in 2026, a 12-language jump in one year, while the LEC added two languages between 2025 and 2026.
The older Riot figures below are flagged as most recent available data, but they show the mechanism: language versions of the world feed are built by hand, which is why partner networks and co-streamers carry most of the localization load.
| Metric | Value | Source |
|---|---|---|
| Esports World Cup 2025: broadcast languages, countries reached, and media partners | 35 languages; 140 countries; 90+ partners | Esports World Cup Foundation, EWC 2025 global live event coverage release, 2025 |
| Esports World Cup 2025: broadcast partners and channels carrying the event | 97 partners; more than 800 channels | Sports Video Group (SVG Europe), EWC 2025 production report, August 28, 2025 |
| Esports World Cup 2026: broadcast languages and broadcast partners | 47 languages; 100+ partners | Esports World Cup Foundation, EWC 2026 in Numbers |
| Languages in which the LEC could be watched, 2025 | 15 | Riot Games, LEC 2025 Broadcast Partners and Winter Co-Streams, January 16, 2025 |
| Languages in which the LEC can be watched across broadcast partners and co-streamers, 2026 | 17 | Riot Games, 2026 LEC Talent, Broadcast Partners and Co-Streamers, January 13, 2026 |
| Worlds 2022: broadcast partners and languages of their shows | 22 partners; 21 languages (most recent available data: Riot Games, 2022) | Riot Games, Riot Esports Delivering Custom Global Broadcasts for Worlds 2022 |
| World-feed versions in different languages that Riot builds manually | 19 (most recent available data: Sports Video Group, 2021) | Sports Video Group, Riot Games Project Stryker, October 28, 2021 |
Context: the two 2025 partner counts (90+ vs 97) come from different documents published at different points of the event; see Data watch.
5. Casters, On-Air Talent and Commentary Research
The official desk is small next to the crowd of community voices. Riot named 16 on-air personalities for the English Worlds 2025 broadcast, while the same event approved 120 co-streamers (section 2). Research on what makes a caster credible is still thin, but one controlled study offers a useful data point for broadcasters worried about audience bias.
In that study, viewers did not rate a mixed-gender casting pair as less expert or less trustworthy once their gaming identity and involvement were controlled for. Separately, AI commentary is moving from research toward live use: a 2026 preprint built a single model that both directs cameras and commentates, and it won more head-to-head comparisons against GPT-4o than the best existing streaming commentary model. It is a preprint, not a peer-reviewed result.
| Metric | Value | Source |
|---|---|---|
| English-language on-air personalities named for the Worlds 2025 broadcast | 16 | Spilled, reporting Riot’s October 2, 2025 announcement |
| Gamers randomly assigned to watch a League of Legends match cast by two male casters or by one male and one female caster | N = 239 | Charitat and Cianfrone, Journal of Electronic Gaming and Esports, 2023 |
| Perceived expertise and trustworthiness: mixed-gender pair vs all-male pair, after controlling for gamer identification and involvement | No significant difference | Charitat and Cianfrone, Journal of Electronic Gaming and Esports, 2023 |
| Perceived trustworthiness of the female caster vs the male caster | Female caster rated slightly more trustworthy | Charitat and Cianfrone, Journal of Electronic Gaming and Esports, 2023 |
| Professional Dota 2 matches used to evaluate the DirCast live directing and commentary model | 27 | Gao et al., DirCast, arXiv preprint, October 2026 |
| Share of head-to-head comparisons won against GPT-4o: DirCast vs the strongest of 11 existing streaming commentary models | 29.2% vs 19.4% | Gao et al., DirCast, arXiv preprint, October 2026 |
Context: the expertise gap was not significant even before controls; only the trustworthiness rating differed, and only slightly, in favor of the female caster.
6. Broadcast Production Scale
Esports production is now built at the scale of a multi-sport event. Camera count at the Esports World Cup more than doubled in a year, from 175 in 2025 to 390 in 2026, and live output rose past 9,000 hours. Most of those hours need commentary, which is why language partners and co-streamers matter so much: no single caster team could cover that volume.
Riot took the opposite route for its leagues: centralize production in remote broadcast centers (facilities that produce shows for events happening elsewhere) and ship the feeds worldwide. The same move from hardware routing to networked audio and video is visible across broadcasting, as our AoIP and broadcast studio migration statistics show.
| Metric | Value | Source |
|---|---|---|
| Esports World Cup, 2025 vs 2026: hours of live content produced, and cameras used | 7,000+ hours (up 55% on 2024) and 175 cameras vs 9,000+ hours and 390 cameras | Esports World Cup Foundation, EWC 2025 coverage release and EWC 2026 in Numbers |
| Esports World Cup 2025: simultaneous production lines, replay servers and broadcast operational staff | 16 lines; 41 replay servers; 550+ staff | Esports World Cup Foundation, EWC 2025 coverage release |
| Esports World Cup 2025: production lines with all main and secondary stages live, and onsite crew | 18 lines; more than 1,000 crew | Sports Video Group (SVG Europe), EWC 2025 production report, August 28, 2025 |
| Expected annual output of Riot’s Project Stryker remote broadcast center in Dublin | More than 6,300 production hours, live 24/7/365 (most recent available data: SVG, 2022) | Sports Video Group, Project Stryker Dublin opening, July 21, 2022 |
| Project Stryker Dublin: floor area, concurrent live streams and crew at peak | 50,000 sq ft; 6 concurrent streams; about 150 crew (most recent available data: SVG, 2021) | Sports Video Group, Riot Games Project Stryker, October 28, 2021 |
Context: the organizer release counts 16 simultaneous production lines for 2025, while the trade-press production report counts 18 with all main and secondary stages active; we report both rather than pick one.
7. Commentary Booths, Crew Audio and Loudness Targets
Audio is where commentary meets engineering. A large event now builds almost as many dedicated commentary studios as main production studios, and the crew needs hundreds of talkback units to coordinate. The Esports World Cup 2025 ran 12 commentary studios next to 14 main studios, a sign that multilingual casting is designed into the venue, not bolted on.
At the output end, loudness standards decide how a caster’s voice sits against game sound and crowd noise. Broadcast TV in Europe targets -23 LUFS (Loudness Units relative to Full Scale, the unit loudness meters use), while streaming guidance sits several units louder. Our streaming loudness normalization statistics and game loudness compliance statistics cover how platforms and game studios apply these targets.
| Metric | Value | Source |
|---|---|---|
| Esports World Cup 2025: commentary studios vs main production studios, and intercom beltpacks (wireless talkback units worn by crew) | 12 vs 14; 325 beltpacks | Esports World Cup Foundation, EWC 2025 coverage release |
| High-performance speakers installed for the Esports World Cup 2025 | More than 200 | Sports Video Group (SVG Europe), EWC 2025 production report, August 28, 2025 |
| Audio control rooms at Riot’s Dublin remote broadcast center, alongside 6 production control rooms | 6 (most recent available data: SVG, 2021) | Sports Video Group, Riot Games Project Stryker, October 28, 2021 |
| EBU R 128 average programme loudness target | -23 LUFS (version 5.0, November 2023) | EBU, R 128 Loudness Normalisation, version 5.0, 2023 |
| AES TD1008 streaming distribution loudness: sports and mixed formats vs news and talk vs pop music | -17 vs -18 vs -16 LUFS | Radio World, Streaming Audio Loudness Guidelines Explained, May 4, 2022 (summarizing AES TD1008) |
| Current version of ITU-R BS.1770, the loudness measurement algorithm behind LUFS meters | BS.1770-5, approved November 2023 | ITU-R, Recommendation BS.1770, 2023 |
| Loudness difference between music and speech when measured with ITU-R BS.1770 | 3 to 4 dB, depending on how dense the material is (vendor’s own documentation) | Telos Alliance, Understanding Loudness for Streaming Audio |
Context: Telos Alliance notes that the -17 LUFS mixed-content value in AES TD1008 splits the difference between the speech and music targets, because the two are impractical to process separately in a real-time chain, which is exactly the situation of a live caster talking over game sound.
Summary: Esports Caster Commentary & Broadcast Audio by the Numbers
| Metric | Value | Source |
|---|---|---|
| Co-streaming share of all esports hours watched, 2025 | 52.9% | Stream Hatchet, Esports Live Streaming Trends Report 2026 |
| Co-streamer share of Call of Duty League 2025 hours watched | 65.1% | Stream Hatchet, Top Co-Streamers analysis, August 2025 |
| Esports World Cup creator program co-streamers, 2025 cohort vs 2026 target | 3,500 vs 5,000 | Esports Foundation creator program release, 2026 |
| Co-streamers selected for Worlds 2025 | 120 across 18 languages | Esports Insider, 2025 |
| Most-watched broadcast language at Worlds 2025 | Korean, overtaking English | Esports Charts, via esports.gg 2025 |
| Growth of Hindi-language Esports World Cup viewing, 2026 vs 2025 | +300% | Esports Charts, via GamesBeat 2026 |
| Esports World Cup broadcast languages, 2026 | 47 | Esports World Cup Foundation, EWC 2026 in Numbers |
| AES TD1008 target for streamed news and talk | -18 LUFS | Radio World, 2022 |
| World-feed language versions built manually by Riot | 19 | Sports Video Group, 2021 |
| English on-air personalities at Worlds 2025 | 16 | Spilled, reporting Riot, 2025 |
| Caster gender study: mixed-gender vs all-male pair, after controls (N = 239) | No significant difference | Journal of Electronic Gaming and Esports, 2023 |
| DirCast AI commentary wins vs GPT-4o, compared with the best existing streaming commentary model | 29.2% vs 19.4% | arXiv preprint, 2026 |
| Project Stryker Dublin annual production hours | More than 6,300 | Sports Video Group, 2022 |
| Current ITU-R BS.1770 loudness measurement version | BS.1770-5, approved November 2023 | ITU-R, 2023 |
| EBU R 128 programme loudness target | -23 LUFS | EBU, 2023 |
| AES TD1008 target for streamed sports | -17 LUFS | Radio World, 2022 |
Methodology and Sources
We ran targeted searches across co-streaming, language viewership, broadcast production, caster research and loudness standards, then read each primary page or the named outlet reporting it. Viewership trackers differ in scope, so we cite each figure with its own tracker and never mix bases inside one row.
- Stream Hatchet, Esports Live Streaming Trends Report 2026
- Stream Hatchet, Yearly Live Streaming Trends Report 2024
- Stream Hatchet, 2025 Yearly Live Streaming Trends Report
- Stream Hatchet, The Top Co-Streamers Promoting Esports and Events, August 7, 2025
- Stream Hatchet, The Esports World Cup 2025 on Live Streaming
- Esports News UK, Co-streaming surpasses official broadcast (Stream Hatchet Q2 2025 report), July 31, 2025
- Digiday, How PGL used influencer co-streams to supercharge esports viewership, April 12, 2024
- Esports World Cup Foundation, 2026 Esports World Cup in Numbers
- Esports World Cup Foundation, EWC 2025 global live event coverage release
- Esports Foundation, Creator Program applications for EWC and ENC 2026, June 15, 2026
- GamesBeat, Esports World Cup viewership jumps 37% in 2026 (Esports Charts data), August 28, 2026
- esports.gg, League of Legends World Championship viewership 2025 (Esports Charts data), November 9, 2025
- dev.ua, Ukrainian-language esports broadcasts in 2025 (Esports Charts data), January 6, 2026
- Riot Games, LEC 2025 Broadcast Partners and Winter Co-Streams, January 16, 2025
- Riot Games, 2026 LEC Talent, Broadcast Partners and Co-Streamers, January 13, 2026
- Riot Games, Riot Esports Delivering Custom Global Broadcasts for Worlds 2022
- Esports Insider, Worlds 2025 co-streamers, October 10, 2025
- Spilled, Riot reveals Worlds 2025 English broadcast lineup, October 3, 2025
- Sports Video Group (SVG Europe), Esports World Cup 2025 broadcast production, August 28, 2025
- Sports Video Group, Riot Games Project Stryker remote broadcast centers, October 28, 2021
- Sports Video Group, Project Stryker Dublin official opening, July 21, 2022
- Charitat and Cianfrone, An Examination of the Effects of Source Gender on Perceived Credibility of Esports Shoutcasters, Journal of Electronic Gaming and Esports, 2023
- Gao et al., DirCast: Live Esports Directing and Commentary with a Single Streaming Video-Language Model, arXiv, October 2026
- EBU, R 128 Loudness Normalisation, version 5.0, 2023
- Radio World, Streaming Audio Loudness Guidelines Explained (AES TD1008), May 4, 2022
- ITU-R, Recommendation BS.1770
- Telos Alliance, Understanding Loudness for Streaming Audio (vendor documentation)
- Data watch: Stream Hatchet publishes two 2025 co-streaming figures, 52.9% of 2.7 billion esports hours in its dedicated esports report and “half” of 2.8 billion hours in its yearly report; the bases differ, so we headline the esports report. For the Esports World Cup 2026, the organizer reports 440 million hours watched while Esports Charts counts more than 237 million; neither source reconciles the gap, and the two use different scopes (Esports Charts, for example, excludes Chinese streaming platforms). The EWC 2025 partner count appears as 90+ in the organizer release and 97 in SVG Europe, and production lines as 16 simultaneous vs 18 with all stages live. dev.ua reports Ukrainian-language growth as 30.5%, but its own figures (more than 25.16 million vs 19.1 million hours) imply about 31.7%, so we report only the raw hours. Worlds 2025 language peak figures published by HotSpawn were excluded because the outlet does not state their source. DirCast is a preprint and has not been peer reviewed. Riot’s 2021 and 2022 production and language figures are the most recent public data and may have changed. Esports Charts’ Worlds 2026 recap and Stream Hatchet’s 2026 yearly report should replace several 2025 figures within months.
- Last updated: November 6, 2026. We update this roundup quarterly, and the next refresh is expected when Stream Hatchet publishes its 2026 Yearly Live Streaming Trends Report and Esports Charts releases its Worlds 2026 viewership recap.