The School of Odds

AS Roma v Fiorentina

2026-08-23 16:30 UTC — Serie A - Italy

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Head to Head

15 sportsbooks (6 in analysis )

Estimated chance of each outcome, according to the model: IQM

AS Roma (Local)

Prediction 62.16%1.61fair odd
EV -4.90%
Edge -3.20%
Kelly -9.24%
Growth +0.000%

assuming max odds 1.53

Bookmakers’ predictions’ distribution
59.33%62.04%62.19%63.30%MINMEANMEDIANMAX
Odds’ distribution
1.371.481.501.5373%67%67%65%MINMEANMEDIANMAX

Fiorentina (Visit)

Prediction 15.42%6.49fair odd
EV +1.74%
Edge +0.264%
Kelly +0.311%
Growth +0.005%

assuming max odds 6.60

Bookmakers’ predictions’ distribution
14.53%15.42%15.44%16.64%MINMEANMEDIANMAX
Odds’ distribution
5.405.916.006.6019%17%17%15%MINMEANMEDIANMAX

Draw

Prediction 22.43%4.46fair odd
EV -2.45%
Edge -0.563%
Kelly -0.731%
Growth +0.000%

assuming max odds 4.35

Bookmakers’ predictions’ distribution
22.04%22.54%22.37%25.13%MINMEANMEDIANMAX
Odds’ distribution
3.404.004.004.3529%25%25%23%MINMEANMEDIANMAX

Sportsbook Odds (15 sportsbooks)

BookmakerLocalVisit ▼DrawMarginUpdated
Marathon Bet1.52I 65.79%NM 63.30%EV -5.52%E -3.63%K -10.61%G +0.000%6.60I 15.15%NM 14.58%EV +1.74%E +0.264%K +0.311%G +0.005%4.35I 22.99%NM 22.12%EV -2.45%E -0.563%K -0.731%G +0.000%3.9%2026-06-24 14:18
SportsBet1.50I 66.67%NM 62.98%EV -6.76%E -4.51%K -13.52%G +0.000%6.50I 15.38%NM 14.53%EV +0.202%E +0.031%K +0.037%G +0.000%4.20I 23.81%NM 22.49%EV -5.81%E -1.38%K -1.82%G +0.000%5.9%2026-06-18 15:39
Pinnacle1.48I 67.57%NM 63.13%EV -8.01%E -5.41%K -16.68%G +0.000%6.30I 15.87%NM 14.83%EV -2.88%E -0.457%K -0.544%G +0.000%4.24I 23.58%NM 22.04%EV -4.92%E -1.16%K -1.52%G +0.000%7.0%2026-06-19 15:00
Betr (AU)1.52I 65.79%NM 61.61%EV -5.52%E -3.63%K -10.61%G +0.000%6.25I 16.00%NM 14.98%EV -3.65%E -0.584%K -0.696%G +0.000%4.00I 25.00%NM 23.41%EV -10.30%E -2.57%K -3.43%G +0.000%6.8%2026-06-18 20:10
betfred_uk1.53I 65.36%NM 61.76%EV -4.90%E -3.20%K -9.24%G +0.000%6.00I 16.67%NM 15.75%EV -7.51%E -1.25%K -1.50%G +0.000%4.20I 23.81%NM 22.50%EV -5.81%E -1.38%K -1.82%G +0.000%5.8%2026-06-18 19:59
Bet Victor1.50I 66.67%NM 61.89%EV -6.76%E -4.51%K -13.52%G +0.000%6.00I 16.67%NM 15.47%EV -7.51%E -1.25%K -1.50%G +0.000%4.10I 24.39%NM 22.64%EV -8.05%E -1.96%K -2.60%G +0.000%7.7%2026-06-19 13:50
FanDuel1.48I 67.57%NM 62.54%EV -8.01%E -5.41%K -16.68%G +0.000%6.00I 16.67%NM 15.43%EV -7.51%E -1.25%K -1.50%G +0.000%4.20I 23.81%NM 22.04%EV -5.81%E -1.38%K -1.82%G +0.000%8.0%2026-06-18 15:41
Paddy Power1.50I 66.67%NM 61.54%EV -6.76%E -4.51%K -13.52%G +0.000%6.00I 16.67%NM 15.38%EV -7.51%E -1.25%K -1.50%G +0.000%4.00I 25.00%NM 23.08%EV -10.30%E -2.57%K -3.43%G +0.000%8.3%2026-06-18 15:40
Sky Bet1.50I 66.67%NM 61.54%EV -6.76%E -4.51%K -13.52%G +0.000%6.00I 16.67%NM 15.38%EV -7.51%E -1.25%K -1.50%G +0.000%4.00I 25.00%NM 23.08%EV -10.30%E -2.57%K -3.43%G +0.000%8.3%2026-06-18 18:10
Unibet (UK)1.50I 66.67%NM 61.13%EV -6.76%E -4.51%K -13.52%G +0.000%5.75I 17.39%NM 15.95%EV -11.36%E -1.98%K -2.39%G +0.000%4.00I 25.00%NM 22.92%EV -10.30%E -2.57%K -3.43%G +0.000%9.1%2026-06-25 04:28
Winamax (DE)1.50I 66.67%NM 61.03%EV -6.76%E -4.51%K -13.52%G +0.000%5.50I 18.18%NM 16.64%EV -15.21%E -2.77%K -3.38%G +0.000%4.10I 24.39%NM 22.33%EV -8.05%E -1.96%K -2.60%G +0.000%9.2%2026-06-25 04:27
Betfair Sportsbook (UK)1.44I 69.44%NM 59.33%EV -10.49%E -7.29%K -23.84%G +0.000%5.50I 18.18%NM 15.53%EV -15.21%E -2.77%K -3.38%G +0.000%3.40I 29.41%NM 25.13%EV -23.75%E -6.99%K -9.90%G +0.000%17.0%2026-06-18 20:20
NetBet (FR)1.37I 72.99%NM 61.94%EV -14.84%E -10.83%K -40.12%G +0.000%5.50I 18.18%NM 15.43%EV -15.21%E -2.77%K -3.38%G +0.000%3.75I 26.67%NM 22.63%EV -15.90%E -4.24%K -5.78%G +0.000%17.8%2026-06-22 20:09
Betclic (FR)1.46I 68.49%NM 60.25%EV -9.25%E -6.33%K -20.11%G +0.000%5.40I 18.52%NM 16.29%EV -16.76%E -3.10%K -3.81%G +0.000%3.75I 26.67%NM 23.46%EV -15.90%E -4.24%K -5.78%G +0.000%13.7%2026-06-25 04:27
Unibet (FR)1.46I 68.49%NM 60.06%EV -9.25%E -6.33%K -20.11%G +0.000%5.40I 18.52%NM 16.24%EV -16.76%E -3.10%K -3.81%G +0.000%3.70I 27.03%NM 23.70%EV -17.02%E -4.60%K -6.31%G +0.000%14.0%2026-06-25 04:28
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 (4)

BookmakerLocalVisitDrawMargin ▲Updated
Smarkets1.41I 70.92%NM 64.95%7.20I 13.89%NM 12.72%4.10I 24.39%NM 22.34%9.2%2026-06-23 10:20
Betfair Exchange (UK)1.09I 91.74%NM 32.18%1.06I 94.34%NM 33.09%1.01I 99.01%NM 34.73%185.1%2026-06-25 11:10
Betfair Exchange (EU)1.09I 91.74%NM 32.18%1.06I 94.34%NM 33.09%1.01I 99.01%NM 34.73%185.1%2026-06-25 11:10
Betfair Exchange (AU)1.06I 94.34%NM 32.79%1.06I 94.34%NM 32.79%1.01I 99.01%NM 34.42%187.7%2026-06-25 11:10