Model track record

Backtested — simulated using historical odds and results. Not live picks. Past performance is not a guide to future results.

Method. Walk-forward, no lookahead: for each Premier League match the production model (Poisson, each team's last 10 matches, 5 pseudo-games of shrinkage, at least 3 games per team) is fitted only on results dated before that match; 2020-21 is warm-up only. A pick is every match-result or over/under 2.5 selection where model probability minus the price's implied probability is at least 3 points, the production rule. Level 1-unit stakes, settled from the real full-time score. CLV is against Pinnacle's closing price, or the market-average close where Pinnacle's is missing. Nothing was tuned on this data.
Data: football-data.co.uk Premier League results and odds (2021-22, 2022-23, 2023-24, 2024-25, 2025-26, 2026-27; 2021-08-13 to 2026-09-20, 1,950 matches), plus BetVault's own stored prices.
Caveats: the best price across bookmakers is rarely all available at one bookmaker, and stakes may be limited; the pre-match prices were taken before the weekend's games, not at a known time. Treat the average-price version as the more realistic one.
Download every backtest pick (CSV) · built 2026-10-12 · version 1

Headline: Best price across bookmakers (headline: same rule as production)

Picks3,5571,163 won
Hit rate32.7%level stakes
ROI-8.2%per 1-unit pick
Units profit-292.811 unit per pick
Average odds4.18decimal
Average CLV+3.6%3,557 with a close
Beat the close62.4%of picks with a close
Max drawdown306.2upeak to trough

Conservative: Market average price (conservative)

Picks3,1151,000 won
Hit rate32.1%level stakes
ROI-13.4%per 1-unit pick
Units profit-417.451 unit per pick
Average odds3.97decimal
Average CLV-1.8%3,115 with a close
Beat the close37.7%of picks with a close
Max drawdown425.4upeak to trough

Cumulative units

Best price across bookmakers (headline: same rule as production): now -292.8u over 3,557 picks

High +2.9uLow -300.1u

Market average price (conservative): now -417.4u over 3,115 picks

High +0.7uLow -422.5u

By season (headline price)

SeasonPicksHit rateUnitsROIAvg oddsAvg CLVBeat closeMax DD
2021-2270832.2%-84.73 -12.0%4.34+3.9%65.1%116.5
2022-2368633.5%-64.06 -9.3%3.93+3.9%65.5%81.2
2023-2471331.0%-108.31 -15.2%4.55+3.5%61.9%115.0
2024-2569834.5%+14.93 +2.1%4.26+2.5%56.0%34.3
2025-2666732.2%-41.24 -6.2%3.91+3.1%60.7%60.2
2026-278532.9%-9.40 -11.1%3.39+12.1%87.1%20.1

By season (average price)

SeasonPicksHit rateUnitsROIAvg oddsAvg CLVBeat closeMax DD
2021-2261631.5%-104.38 -16.9%4.14-1.7%42.9%106.0
2022-2359133.0%-80.23 -13.6%3.76-1.0%39.1%96.3
2023-2462329.9%-133.75 -21.5%4.27-2.2%36.1%139.7
2024-2562734.8%-3.55 -0.6%4.06-2.5%32.4%37.1
2025-2658331.2%-83.63 -14.3%3.69-2.0%36.2%88.3
2026-277533.3%-11.91 -15.9%3.24+1.3%53.3%19.4

By market (headline price)

MarketPicksHit rateUnitsROIAvg oddsAvg CLVBeat closeMax DD
Match result209723.9%-187.89 -9.0%5.60+4.6%64.1%209.2
Over/Under 2.5146045.3%-104.92 -7.2%2.15+2.1%60.0%108.9

By market (average price)

MarketPicksHit rateUnitsROIAvg oddsAvg CLVBeat closeMax DD
Match result185323.2%-285.59 -15.4%5.27-1.9%39.3%297.3
Over/Under 2.5126245.2%-131.86 -10.4%2.07-1.7%35.3%134.2

Every variant tested

Price usedPicksHit rateUnitsROIAvg CLVBeat closeMax DDCSV
Best price across bookmakers (headline: same rule as production)355732.7%-292.81-8.2% +3.6%62.4%306.2CSV
Market average price (conservative)311532.1%-417.45-13.4% -1.8%37.7%425.4CSV
Bet365 price only308532.1%-419.27-13.6% -2.2%37.6%427.8CSV
BetVault's own stored prices (2026-27, last snapshot ≥60 min before kick-off)1330.8%-2.36-18.2% +7.2%100.0%6.0CSV

BetVault's own stored prices cover only 13 picks so far, far too few to read anything into.

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