1,900 EPL matches · Five seasons · Frozen closing-market sample
How Often Do Premier League Favourites Win?
- 1,899 unique favourites
- Six probability bands
- Wilson 95% intervals
Direct answer: the unique closing favourite won 1,063 of 1,899 matches— 55.98%. It did not win 836 times (44.02%). One tied top probability was excluded. This is a closing-market reference, not AI model accuracy or a profit claim.
Published by Football Proof AI · Published · premier-league-favourite-win-rate-benchmark/1.0.0 · Editorial technical note; not externally peer reviewed
Canonical publication record
Abstract
A reproducible, aggregate-only answer to how often Premier League favourites win: 1,063 wins from 1,899 unique closing favourites across 1,900 completed matches and five seasons, with probability bands, Wilson intervals, season variation, threshold coverage, source hashes and frozen cross-checks.
- Author and publisher
- Football Proof AI
- Publication version
premier-league-favourite-win-rate-benchmark/1.0.0- Published
- Last modified
- Release status
- Current release
- Review status
- Editorial technical note; not externally peer reviewed
- Production method
- Editorial dataset maintained from the declared method, linked sources and any listed reproducible artifacts.
- Software and AI assistance
- Software, including generative AI, may assist drafting, transformation or quality checks. It is not treated as a source, author or independent reviewer; factual and quantitative claims must remain bound to cited sources, declared methods or reproducible artifacts.
- Why this exists
- Enable readers to inspect assumptions, reproduce calculations and reject claims that exceed the published evidence.
- Commercial boundary
- No bookmaker, prediction provider or paid placement controls the evidence rules, calculations or conclusions on this page.
- Version history
premier-league-favourite-win-rate-benchmark/1.0.0: Initial public release.
- Immutable artifacts
- 1.0.0.json
sha256:2c9317706d5222207f9153b9d891f1a17db46b52a78eaf3a4776becdf16e7b24 - premier-league-favourite-win-rate-v1.csv
sha256:9900769c13bb3bc7e51f771db9b0f70d2ac1666b3518928086b9089d7e16716b - 1.0.0-manifest.json
sha256:e9d5a0c5bb76b447bd66da985dc492cc083c4fbfe303d6c751adebebd3bcc043 - premier-league-favourite-win-rate-generator-1.0.0.mjs
sha256:15fc2cb095ca1e337df62eceffb230ce741504ec56c88db84672b1037515cb9f
- 1.0.0.json
- Release resources
1,063 wins from 1,899 unique favourites.
836 draws or other-outcome wins.
Observed minus mean probability: +1.92 pp.
Sampling uncertainty, not an independence guarantee.
One quotable result · One visible denominator
The favourite still failed to win 44.02% of the time.
“Favourite” means the unique maximum probability after proportional margin removal from average closing H/D/A odds. “Win” means that exact regulation-time outcome occurred. The frozen aggregate covers 2021/22 to 2025/26.
- Included
- 1,899 matches with one unique top closing probability.
- Excluded
- 1 match with a tied top probability; no arbitrary tie-break.
- Observed interval
- 53.73%–58.20% under a Wilson 95% score interval.
- Not established
- AI accuracy, future certainty, value betting, profit or a universal cross-league rate.
Favourite strength · Exact disclosed bands
Stronger closing favourites won more often—but coverage fell fast.
The bars show observed win rate, not the probability assigned to an upcoming match. Every point retains its denominator and interval; no band was chosen after seeing the result.
| No-vig favourite band | n | Wins | Observed win rate | Mean probability | Gap | Wilson 95% CI |
|---|---|---|---|---|---|---|
| 30% to below 40% | 280 | 129 | 46.07% | 37.84% | +8.23 pp | 40.33%–51.92% |
| 40% to below 50% | 581 | 260 | 44.75% | 44.70% | +0.05 pp | 40.75%–48.81% |
| 50% to below 60% | 467 | 265 | 56.75% | 55.12% | +1.62 pp | 52.21%–61.17% |
| 60% to below 70% | 301 | 194 | 64.45% | 64.80% | -0.35 pp | 58.89%–69.65% |
| 70% to below 80% | 192 | 146 | 76.04% | 74.57% | +1.48 pp | 69.53%–81.53% |
| 80% to below 90% | 78 | 69 | 88.46% | 83.69% | +4.78 pp | 79.50%–93.81% |
Confidence threshold · Accuracy and coverage together
A higher hit rate is not free: the sample gets smaller.
Quoting only the last card would hide 95.9% of unique favourites. Threshold results must disclose both observed accuracy and the fraction of the full eligible sample retained.
389 / 861 won · 45.3% of eligible favourites · 95% CI 41.88%–48.52%
674 / 1,038 won · 54.7% of eligible favourites · 95% CI 61.98%–67.78%
215 / 270 won · 14.2% of eligible favourites · 95% CI 74.43%–84.00%
69 / 78 won · 4.1% of eligible favourites · 95% CI 79.50%–93.81%
Season variation · Same definition every year
One season ranged from 49.47% to 60.00% across this window.
The overall 55.98% is a five-season weighted aggregate, not a stable annual constant. The same frozen rule is applied to every season, including the single excluded tie.
| Season | Eligible | Wins | Non-wins | Win rate | Mean probability | Wilson 95% CI | Ties excluded |
|---|---|---|---|---|---|---|---|
| 2021/22 | 380 | 225 | 155 | 59.21% | 54.38% | 54.20%–64.04% | 0 |
| 2022/23 | 380 | 211 | 169 | 55.53% | 53.66% | 50.50%–60.44% | 0 |
| 2023/24 | 380 | 228 | 152 | 60.00% | 55.91% | 55.00%–64.80% | 0 |
| 2024/25 | 379 | 211 | 168 | 55.67% | 54.60% | 50.64%–60.59% | 1 |
| 2025/26 | 380 | 188 | 192 | 49.47% | 51.74% | 44.48%–54.48% | 0 |
Simple outcome rates · A label is not a fair contest
Always choosing home hit 44.16%; the closing favourite hit 55.98%.
That difference is descriptive, not a model-vs-market claim. Closing odds identify a different outcome match by match and can use information unavailable 24 hours earlier.
839 of 1,900 completed matches · 95% CI 41.94%–46.40%
454 of 1,900 completed matches · 95% CI 22.03%–25.86%
607 of 1,900 completed matches · 95% CI 29.89%–34.08%
1,063 of 1,899 eligible matches · one top-probability tie excluded.
| Favourite label | n | Wins | Win rate | Mean probability | Wilson 95% CI |
|---|---|---|---|---|---|
| Home | 1,190 | 684 | 57.48% | 55.82% | 54.65%–60.26% |
| Draw | 0 | 0 | No unique draw favourites | — | Not available |
| Away | 709 | 379 | 53.46% | 51.11% | 49.78%–57.10% |
Critical comparison boundary
Closing prices know more than a 24-hour-ahead forecast.
Football-Data labels AvgCH, AvgCD and AvgCA as average closing odds. They can reflect late line-ups, injuries and market movement. This sample therefore cannot be used as a same-information contest with the site's planned forecasts, which must be locked at least 24 hours before kick-off.
Reproducible method · No hand-edited scorecard
Five source hashes, one fixed favourite rule, two benchmark cross-checks.
- 01
Verify source bytes
Five EPL evaluation CSVs must match the SHA-256 values inherited from the frozen manifests.
- 02
Remove margin
Invert all three closing average odds and divide each inverse by their sum.
- 03
Require one top label
Exclude a tied maximum instead of picking home, draw or away by arbitrary class order.
- 04
Keep every denominator
Publish wins, non-wins, mean probability, gap, interval and coverage for each declared group.
- 05
Cross-check releases
Overall, season and band totals must match the existing scoring and calibration benchmarks.
- 06
Freeze the output
Versioned JSON, CSV, manifest and generator bytes expose every aggregate used by this page.
Open aggregates · Exact bytes · Rights kept separate
Download, reproduce and challenge the result.
The release republishes no raw match or odds rows. Its original aggregate analysis is offered under CC BY 4.0 only to the extent Football Proof AI holds rights in it; source files remain with their publisher.
- JSON SHA-256
2c9317706d5222207f9153b9d891f1a17db46b52a78eaf3a4776becdf16e7b24- CSV SHA-256
9900769c13bb3bc7e51f771db9b0f70d2ac1666b3518928086b9089d7e16716b- Manifest SHA-256
e9d5a0c5bb76b447bd66da985dc492cc083c4fbfe303d6c751adebebd3bcc043- Generator SHA-256
15fc2cb095ca1e337df62eceffb230ce741504ec56c88db84672b1037515cb9f
Favourite win-rate FAQ
Five boundaries that keep 55.98% honest.
How often do Premier League favourites or favorites win?
In this frozen 2021/22–2025/26 sample, the unique closing favourite won 1,063 of 1,899 matches: 55.98%. One tied top probability was excluded. This is one league and one closing-market definition, not a universal football constant.
How often did 50%+ no-vig favourites win?
Favourites with at least 50% proportional no-vig probability won 674 of 1,038 matches: 64.93%. That is not identical to every bookmaker use of “odds-on”, because quoted odds include margin and can differ by bookmaker.
Is a 70% Premier League favourite guaranteed to win?
No. The at-least-70% group won 215 of 270 matches, or 79.63%. 55 still did not win, and the result describes a historical group rather than the next match.
What counts as an upset in this dataset?
The release uses the narrower label ‘favourite non-win’: the uniquely most-probable H/D/A outcome did not occur. It can include a draw or the other team winning. It does not establish a profitable underdog bet, market inefficiency or a causal shock.
Does a 55.98% favourite win rate imply betting profit?
No. Hit rate ignores price, margin, stake availability, limits, commission, slippage and selection rules. A market can correctly identify the likelier outcome while offering no positive expected value.