The School of Odds
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Walsall v Grimsby Town

2026-08-22 11:30 UTC — League 2

Head to Head

20 sportsbooks (9 in analysis )

Estimated chance of each outcome, according to the model: Interquartile mean (Vetted List)

Walsall (Local)

Prediction 34.85%2.87fair odd
EV -4.16%
Edge -1.51%
Kelly -2.38%
Growth +0.000%

assuming max odds 2.75

Bookmakers’ predictions’ distribution
33.56%35.11%34.80%36.94%MIN.MEANMEDIANMAX.
Odds’ distribution
2.482.622.652.7540.32%38.12%37.74%36.36%MIN.MEANMEDIANMAX.

Grimsby Town (Visit)

Prediction 36.11%2.77fair odd
EV -2.51%
Edge -0.929%
Kelly -1.48%
Growth +0.000%

assuming max odds 2.70

Bookmakers’ predictions’ distribution
34.20%35.77%36.17%36.78%MIN.MEANMEDIANMAX.
Odds’ distribution
2.452.572.552.7040.82%38.99%39.14%37.04%MIN.MEANMEDIANMAX.

Draw

Prediction 29.04%3.44fair odd
EV -4.16%
Edge -1.26%
Kelly -1.81%
Growth +0.000%

assuming max odds 3.30

Bookmakers’ predictions’ distribution
27.67%29.12%29.03%30.20%MIN.MEANMEDIANMAX.
Odds’ distribution
3.003.193.203.3033.33%31.31%31.25%30.30%MIN.MEANMEDIANMAX.

For Head to Head, Interquartile mean (Vetted List) estimates these probabilities: Walsall (Local): 34.85%; Grimsby Town (Visit): 36.11%; Draw: 29.04%. For Grimsby Town (Visit), that estimate is equivalent to fair decimal odds of 2.77. No eligible bookmaker offers odds above that level: the best available odds are 2.70, with an expected value of -2.51%; they do not produce positive expected value.

Sportsbook Odds (20 sportsbooks)

We're not affiliated with any bookmaker, we earn nothing from any action done with them.

BookmakerLocal ▼VisitDrawMarginUpdated
betfred_uk🎯2.75I 36.36%NM 34.69%EV -4.16%E -1.51%K -2.38%G +0.000%2.62I 38.17%NM 36.41%EV -5.40%E -2.06%K -3.33%G +0.000%3.30I 30.30%NM 28.91%EV -4.16%E -1.26%K -1.81%G +0.000%4.8%2026-08-15 17:14
Pinnacle🎯2.73I 36.63%NM 34.56%EV -4.86%E -1.78%K -2.81%G +0.000%2.61I 38.31%NM 36.15%EV -5.76%E -2.21%K -3.58%G +0.000%3.22I 31.06%NM 29.30%EV -6.49%E -2.01%K -2.92%G +0.000%6.0%2026-08-15 17:30
888sport🎯2.70I 37.04%NM 33.56%EV -5.90%E -2.19%K -3.47%G +0.000%2.50I 40.00%NM 36.24%EV -9.73%E -3.89%K -6.49%G +0.000%3.00I 33.33%NM 30.20%EV -12.88%E -4.29%K -6.44%G +0.000%10.4%2026-08-15 17:15
William Hill🎯2.70I 37.04%NM 33.56%EV -5.90%E -2.19%K -3.47%G +0.000%2.50I 40.00%NM 36.24%EV -9.73%E -3.89%K -6.49%G +0.000%3.00I 33.33%NM 30.20%EV -12.88%E -4.29%K -6.44%G +0.000%10.4%2026-08-15 17:14
1xBet🎯2.66I 37.59%NM 34.84%EV -7.30%E -2.74%K -4.40%G +0.000%2.56I 39.06%NM 36.20%EV -7.56%E -2.95%K -4.85%G +0.000%3.20I 31.25%NM 28.96%EV -7.07%E -2.21%K -3.21%G +0.000%7.9%2026-08-15 17:50
Marathon Bet🎯2.66I 37.59%NM 34.84%EV -7.30%E -2.74%K -4.40%G +0.000%2.56I 39.06%NM 36.20%EV -7.56%E -2.95%K -4.85%G +0.000%3.20I 31.25%NM 28.96%EV -7.07%E -2.21%K -3.21%G +0.000%7.9%2026-08-15 17:45
Betr (AU)🎯2.65I 37.74%NM 35.68%EV -7.65%E -2.89%K -4.63%G +0.000%2.65I 37.74%NM 35.68%EV -4.31%E -1.63%K -2.61%G +0.000%3.30I 30.30%NM 28.65%EV -4.16%E -1.26%K -1.81%G +0.000%5.8%2026-08-15 17:14
Coolbet🎯2.65I 37.74%NM 35.28%EV -7.65%E -2.89%K -4.63%G +0.000%2.60I 38.46%NM 35.96%EV -6.12%E -2.35%K -3.82%G +0.000%3.25I 30.77%NM 28.77%EV -5.62%E -1.73%K -2.50%G +0.000%7.0%2026-08-15 17:19
NordicBet🎯2.65I 37.74%NM 34.72%EV -7.65%E -2.89%K -4.63%G +0.000%2.55I 39.22%NM 36.08%EV -7.92%E -3.11%K -5.11%G +0.000%3.15I 31.75%NM 29.21%EV -8.52%E -2.70%K -3.96%G +0.000%8.7%2026-08-15 16:45
Betsson🎯2.65I 37.74%NM 34.72%EV -7.65%E -2.89%K -4.63%G +0.000%2.55I 39.22%NM 36.08%EV -7.92%E -3.11%K -5.11%G +0.000%3.15I 31.75%NM 29.21%EV -8.52%E -2.70%K -3.96%G +0.000%8.7%2026-08-15 16:44
DraftKings🎯2.65I 37.74%NM 34.72%EV -7.65%E -2.89%K -4.63%G +0.000%2.55I 39.22%NM 36.08%EV -7.92%E -3.11%K -5.11%G +0.000%3.15I 31.75%NM 29.21%EV -8.52%E -2.70%K -3.96%G +0.000%8.7%2026-08-15 20:00
Fanatics🎯2.65I 37.74%NM 34.62%EV -7.65%E -2.89%K -4.63%G +0.000%2.50I 40.00%NM 36.70%EV -9.73%E -3.89%K -6.49%G +0.000%3.20I 31.25%NM 28.67%EV -7.07%E -2.21%K -3.21%G +0.000%9.0%2026-08-15 17:09
Betfair Sportsbook (UK)🎯2.63I 38.02%NM 35.61%EV -8.34%E -3.17%K -5.12%G +0.000%2.60I 38.46%NM 36.02%EV -6.12%E -2.35%K -3.82%G +0.000%3.30I 30.30%NM 28.38%EV -4.16%E -1.26%K -1.81%G +0.000%6.8%2026-08-15 17:14
Paddy Power🎯2.60I 38.46%NM 35.36%EV -9.39%E -3.61%K -5.87%G +0.000%2.50I 40.00%NM 36.78%EV -9.73%E -3.89%K -6.49%G +0.000%3.30I 30.30%NM 27.86%EV -4.16%E -1.26%K -1.81%G +0.000%8.8%2026-08-15 17:14
Bet Right🎯2.60I 38.46%NM 35.31%EV -9.39%E -3.61%K -5.87%G +0.000%2.55I 39.22%NM 36.00%EV -7.92%E -3.11%K -5.11%G +0.000%3.20I 31.25%NM 28.69%EV -7.07%E -2.21%K -3.21%G +0.000%8.9%2026-08-15 17:15
SportsBet🎯2.55I 39.22%NM 35.81%EV -11.13%E -4.37%K -7.18%G +0.000%2.50I 40.00%NM 36.52%EV -9.73%E -3.89%K -6.49%G +0.000%3.30I 30.30%NM 27.67%EV -4.16%E -1.26%K -1.81%G +0.000%9.5%2026-08-15 17:15
Unibet (UK)🎯2.50I 40.00%NM 36.94%EV -12.87%E -5.15%K -8.58%G +0.000%2.70I 37.04%NM 34.20%EV -2.51%E -0.929%K -1.48%G +0.000%3.20I 31.25%NM 28.86%EV -7.07%E -2.21%K -3.21%G +0.000%8.3%2026-08-15 17:40
LeoVegas🎯2.50I 40.00%NM 36.46%EV -12.87%E -5.15%K -8.58%G +0.000%2.60I 38.46%NM 35.06%EV -6.12%E -2.35%K -3.82%G +0.000%3.20I 31.25%NM 28.48%EV -7.07%E -2.21%K -3.21%G +0.000%9.7%2026-08-15 17:54
Sky Bet🎯2.50I 40.00%NM 35.37%EV -12.87%E -5.15%K -8.58%G +0.000%2.45I 40.82%NM 36.10%EV -11.54%E -4.71%K -7.96%G +0.000%3.10I 32.26%NM 28.53%EV -9.97%E -3.22%K -4.75%G +0.000%13.1%2026-08-15 17:14
Codere (IT)🎯2.48I 40.32%NM 36.72%EV -13.57%E -5.47%K -9.17%G +0.000%2.65I 37.74%NM 34.37%EV -4.31%E -1.63%K -2.61%G +0.000%3.15I 31.75%NM 28.91%EV -8.52%E -2.70%K -3.96%G +0.000%9.8%2026-08-15 16:44
Margin = Margin (Overround) · I = Implied Probability · NM = No-Margin Probability · EV = Expected Value · E = Edge · K = Kelly Criterion · G = Bankroll Growth

Updated is when each book last changed its price, so an older time means the odds simply haven't moved, not that the price is stale. Books not seen in the last ~15 minutes are normally dropped; only if a whole market's feed goes quiet are the latest recorded prices shown instead.

Exchanges (1)

BookmakerLocalVisitDrawMargin ▲Updated
Smarkets◎2.36I 42.37%NM 36.55%2.50I 40.00%NM 34.50%2.98I 33.56%NM 28.95%15.9%2026-08-15 16:40

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