The School of Odds
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Seattle Mariners v Tampa Bay Rays

2026-08-08 01:46 UTC — MLB

Head to Head

57 sportsbooks (18 in analysis )

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

Seattle Mariners (Local)

Prediction 51.89%1.93fair odd
EV -0.883%
Edge -0.462%
Kelly -0.970%
Growth +0.000%

assuming max odds 1.91

Bookmakers’ predictions’ distribution
50.00%51.87%51.94%52.63%MIN.MEANMEDIANMAX.
Odds’ distribution
1.741.841.851.9157.47%54.25%54.05%52.36%MIN.MEANMEDIANMAX.

Tampa Bay Rays (Visit)

Prediction 48.11%2.08fair odd
EV -1.86%
Edge -0.913%
Kelly -1.79%
Growth +0.000%

assuming max odds 2.04

Bookmakers’ predictions’ distribution
47.37%48.13%48.06%50.00%MIN.MEANMEDIANMAX.
Odds’ distribution
1.881.971.982.0453.19%50.64%50.51%49.02%MIN.MEANMEDIANMAX.

For Head to Head, Interquartile mean (Vetted List) estimates these probabilities: Seattle Mariners (Local): 51.89%; Tampa Bay Rays (Visit): 48.11%. For Seattle Mariners (Local), that estimate is equivalent to fair decimal odds of 1.93. No eligible bookmaker offers odds above that level: the best available odds are 1.91, with an expected value of -0.883%; they do not produce positive expected value.

Sportsbook Odds (57 sportsbooks)

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

BookmakerLocal ▼VisitMarginUpdated
Hard Rock Bet🎯1.91I 52.36%NM 51.15%EV -0.883%E -0.462%K -0.970%G +0.000%2.00I 50.00%NM 48.85%EV -3.79%E -1.89%K -3.79%G +0.000%2.4%2026-08-06 22:45
BetOnline.ag🎯1.91I 52.36%NM 51.15%EV -0.883%E -0.462%K -0.970%G +0.000%2.00I 50.00%NM 48.85%EV -3.79%E -1.89%K -3.79%G +0.000%2.4%2026-08-06 23:35
LowVig.ag🎯1.91I 52.36%NM 51.15%EV -0.883%E -0.462%K -0.970%G +0.000%2.00I 50.00%NM 48.85%EV -3.79%E -1.89%K -3.79%G +0.000%2.4%2026-08-06 23:35
BetUS🎯1.91I 52.36%NM 51.15%EV -0.883%E -0.462%K -0.970%G +0.000%2.00I 50.00%NM 48.85%EV -3.79%E -1.89%K -3.79%G +0.000%2.4%2026-08-06 23:44
GTbets🎯1.91I 52.36%NM 51.15%EV -0.883%E -0.462%K -0.970%G +0.000%2.00I 50.00%NM 48.85%EV -3.79%E -1.89%K -3.79%G +0.000%2.4%2026-08-06 23:50
Fliff🎯1.91I 52.36%NM 50.00%EV -0.883%E -0.462%K -0.970%G +0.000%1.91I 52.36%NM 50.00%EV -8.12%E -4.25%K -8.92%G +0.000%4.7%2026-08-06 20:15
Paddy Power🎯1.90I 52.63%NM 50.00%EV -1.40%E -0.738%K -1.56%G +0.000%1.90I 52.63%NM 50.00%EV -8.60%E -4.53%K -9.55%G +0.000%5.3%2026-08-06 20:05
1xBet🎯1.89I 52.91%NM 51.91%EV -1.92%E -1.02%K -2.16%G +0.000%2.04I 49.02%NM 48.09%EV -1.86%E -0.913%K -1.79%G +0.000%1.9%2026-08-07 01:25
Pinnacle🎯1.88I 53.19%NM 52.04%EV -2.44%E -1.30%K -2.77%G +0.000%2.04I 49.02%NM 47.96%EV -1.86%E -0.913%K -1.79%G +0.000%2.2%2026-08-07 01:25
PointsBet (AU)🎯1.87I 53.48%NM 51.05%EV -2.96%E -1.58%K -3.40%G +0.000%1.95I 51.28%NM 48.95%EV -6.19%E -3.18%K -6.52%G +0.000%4.8%2026-08-06 20:10
FanDuel🎯1.86I 53.76%NM 51.56%EV -3.48%E -1.87%K -4.04%G +0.000%1.98I 50.51%NM 48.44%EV -4.75%E -2.40%K -4.85%G +0.000%4.3%2026-08-06 20:05
BetRivers🎯1.85I 54.05%NM 51.95%EV -4.00%E -2.16%K -4.70%G +0.000%2.00I 50.00%NM 48.05%EV -3.79%E -1.89%K -3.79%G +0.000%4.1%2026-08-06 21:40
Unibet (NL)🎯1.85I 54.05%NM 51.95%EV -4.00%E -2.16%K -4.70%G +0.000%2.00I 50.00%NM 48.05%EV -3.79%E -1.89%K -3.79%G +0.000%4.1%2026-08-06 21:40
Unibet (SE)🎯1.85I 54.05%NM 51.95%EV -4.00%E -2.16%K -4.70%G +0.000%2.00I 50.00%NM 48.05%EV -3.79%E -1.89%K -3.79%G +0.000%4.1%2026-08-06 21:40
Svenska Spel🎯1.85I 54.05%NM 51.95%EV -4.00%E -2.16%K -4.70%G +0.000%2.00I 50.00%NM 48.05%EV -3.79%E -1.89%K -3.79%G +0.000%4.1%2026-08-06 21:40
TAB🎯1.85I 54.05%NM 51.95%EV -4.00%E -2.16%K -4.70%G +0.000%2.00I 50.00%NM 48.05%EV -3.79%E -1.89%K -3.79%G +0.000%4.1%2026-08-06 23:55
MyBookie.ag🎯1.85I 54.05%NM 51.95%EV -4.00%E -2.16%K -4.70%G +0.000%2.00I 50.00%NM 48.05%EV -3.79%E -1.89%K -3.79%G +0.000%4.1%2026-08-07 00:14
Ladbrokes (UK)🎯1.85I 54.05%NM 51.95%EV -4.00%E -2.16%K -4.70%G +0.000%2.00I 50.00%NM 48.05%EV -3.79%E -1.89%K -3.79%G +0.000%4.1%2026-08-07 01:00
Coral🎯1.85I 54.05%NM 51.95%EV -4.00%E -2.16%K -4.70%G +0.000%2.00I 50.00%NM 48.05%EV -3.79%E -1.89%K -3.79%G +0.000%4.1%2026-08-07 01:00
DraftKings🎯1.85I 54.05%NM 51.70%EV -4.00%E -2.16%K -4.70%G +0.000%1.98I 50.51%NM 48.30%EV -4.75%E -2.40%K -4.85%G +0.000%4.6%2026-08-07 00:35
BetMGM🎯1.85I 54.05%NM 51.70%EV -4.00%E -2.16%K -4.70%G +0.000%1.98I 50.51%NM 48.30%EV -4.75%E -2.40%K -4.85%G +0.000%4.6%2026-08-07 01:00
Bet Right🎯1.85I 54.05%NM 51.57%EV -4.00%E -2.16%K -4.70%G +0.000%1.97I 50.76%NM 48.43%EV -5.23%E -2.66%K -5.39%G +0.000%4.8%2026-08-06 20:20
Casumo🎯1.85I 54.05%NM 51.57%EV -4.00%E -2.16%K -4.70%G +0.000%1.97I 50.76%NM 48.43%EV -5.23%E -2.66%K -5.39%G +0.000%4.8%2026-08-06 21:40
LeoVegas (SE)🎯1.85I 54.05%NM 51.57%EV -4.00%E -2.16%K -4.70%G +0.000%1.97I 50.76%NM 48.43%EV -5.23%E -2.66%K -5.39%G +0.000%4.8%2026-08-06 21:40
Unibet🎯1.85I 54.05%NM 51.57%EV -4.00%E -2.16%K -4.70%G +0.000%1.97I 50.76%NM 48.43%EV -5.23%E -2.66%K -5.39%G +0.000%4.8%2026-08-06 21:40
betPARX🎯1.85I 54.05%NM 51.57%EV -4.00%E -2.16%K -4.70%G +0.000%1.97I 50.76%NM 48.43%EV -5.23%E -2.66%K -5.39%G +0.000%4.8%2026-08-06 21:40
Bally Bet🎯1.85I 54.05%NM 51.57%EV -4.00%E -2.16%K -4.70%G +0.000%1.97I 50.76%NM 48.43%EV -5.23%E -2.66%K -5.39%G +0.000%4.8%2026-08-06 21:40
ATG (SE)🎯1.85I 54.05%NM 51.57%EV -4.00%E -2.16%K -4.70%G +0.000%1.97I 50.76%NM 48.43%EV -5.23%E -2.66%K -5.39%G +0.000%4.8%2026-08-06 21:40
Bovada🎯1.85I 54.05%NM 51.57%EV -4.00%E -2.16%K -4.70%G +0.000%1.97I 50.76%NM 48.43%EV -5.23%E -2.66%K -5.39%G +0.000%4.8%2026-08-07 01:50
Ladbrokes (AU)🎯1.85I 54.05%NM 51.44%EV -4.00%E -2.16%K -4.70%G +0.000%1.96I 51.02%NM 48.56%EV -5.71%E -2.91%K -5.95%G +0.000%5.1%2026-08-07 00:55
Neds🎯1.85I 54.05%NM 51.44%EV -4.00%E -2.16%K -4.70%G +0.000%1.96I 51.02%NM 48.56%EV -5.71%E -2.91%K -5.95%G +0.000%5.1%2026-08-07 00:55
SportsBet🎯1.85I 54.05%NM 51.32%EV -4.00%E -2.16%K -4.70%G +0.000%1.95I 51.28%NM 48.68%EV -6.19%E -3.18%K -6.52%G +0.000%5.3%2026-08-06 20:10
Unibet (UK)🎯1.84I 54.35%NM 51.83%EV -4.52%E -2.45%K -5.38%G +0.000%1.98I 50.51%NM 48.17%EV -4.75%E -2.40%K -4.85%G +0.000%4.9%2026-08-07 00:01
Betr (AU)🎯1.84I 54.35%NM 51.71%EV -4.52%E -2.45%K -5.38%G +0.000%1.97I 50.76%NM 48.29%EV -5.23%E -2.66%K -5.39%G +0.000%5.1%2026-08-06 20:15
theScore Bet🎯1.83I 54.64%NM 52.22%EV -5.03%E -2.75%K -6.07%G +0.000%2.00I 50.00%NM 47.78%EV -3.79%E -1.89%K -3.79%G +0.000%4.6%2026-08-06 23:10
Caesars🎯1.83I 54.64%NM 52.22%EV -5.03%E -2.75%K -6.07%G +0.000%2.00I 50.00%NM 47.78%EV -3.79%E -1.89%K -3.79%G +0.000%4.6%2026-08-07 01:49
Betway🎯1.83I 54.64%NM 52.22%EV -5.03%E -2.75%K -6.07%G +0.000%2.00I 50.00%NM 47.78%EV -3.79%E -1.89%K -3.79%G +0.000%4.6%2026-08-07 01:55
PlayUp🎯1.83I 54.64%NM 51.97%EV -5.03%E -2.75%K -6.07%G +0.000%1.98I 50.51%NM 48.03%EV -4.75%E -2.40%K -4.85%G +0.000%5.1%2026-08-06 23:55
Marathon Bet🎯1.83I 54.64%NM 51.97%EV -5.03%E -2.75%K -6.07%G +0.000%1.98I 50.51%NM 48.03%EV -4.75%E -2.40%K -4.85%G +0.000%5.1%2026-08-07 01:15
Betsson🎯1.83I 54.64%NM 51.97%EV -5.03%E -2.75%K -6.07%G +0.000%1.98I 50.51%NM 48.03%EV -4.75%E -2.40%K -4.85%G +0.000%5.1%2026-08-07 01:20
NordicBet🎯1.83I 54.64%NM 51.97%EV -5.03%E -2.75%K -6.07%G +0.000%1.98I 50.51%NM 48.03%EV -4.75%E -2.40%K -4.85%G +0.000%5.1%2026-08-07 01:20
TABtouch🎯1.83I 54.64%NM 51.72%EV -5.03%E -2.75%K -6.07%G +0.000%1.96I 51.02%NM 48.28%EV -5.71%E -2.91%K -5.95%G +0.000%5.7%2026-08-06 21:40
ReBet🎯1.83I 54.64%NM 51.59%EV -5.03%E -2.75%K -6.07%G +0.000%1.95I 51.28%NM 48.41%EV -6.19%E -3.18%K -6.52%G +0.000%5.9%2026-08-07 01:45
BoyleSports🎯1.83I 54.64%NM 51.59%EV -5.03%E -2.75%K -6.07%G +0.000%1.95I 51.28%NM 48.41%EV -6.19%E -3.18%K -6.52%G +0.000%5.9%2026-08-07 00:55
Betclic (FR)🎯1.82I 54.95%NM 51.85%EV -5.55%E -3.05%K -6.77%G +0.000%1.96I 51.02%NM 48.15%EV -5.71%E -2.91%K -5.95%G +0.000%6.0%2026-08-06 23:57
Winamax (DE)🎯1.82I 54.95%NM 51.85%EV -5.55%E -3.05%K -6.77%G +0.000%1.96I 51.02%NM 48.15%EV -5.71%E -2.91%K -5.95%G +0.000%6.0%2026-08-07 00:00
LiveScore Bet🎯1.82I 54.95%NM 51.72%EV -5.55%E -3.05%K -6.77%G +0.000%1.95I 51.28%NM 48.28%EV -6.19%E -3.18%K -6.52%G +0.000%6.2%2026-08-06 21:40
Virgin Bet🎯1.82I 54.95%NM 51.72%EV -5.55%E -3.05%K -6.77%G +0.000%1.95I 51.28%NM 48.28%EV -6.19%E -3.18%K -6.52%G +0.000%6.2%2026-08-06 21:40
888sport🎯1.80I 55.56%NM 52.63%EV -6.59%E -3.66%K -8.24%G +0.000%2.00I 50.00%NM 47.37%EV -3.79%E -1.89%K -3.79%G +0.000%5.6%2026-08-06 20:15
888sport (SE)🎯1.80I 55.56%NM 52.63%EV -6.59%E -3.66%K -8.24%G +0.000%2.00I 50.00%NM 47.37%EV -3.79%E -1.89%K -3.79%G +0.000%5.6%2026-08-06 20:15
Mr Green (SE)🎯1.80I 55.56%NM 52.63%EV -6.59%E -3.66%K -8.24%G +0.000%2.00I 50.00%NM 47.37%EV -3.79%E -1.89%K -3.79%G +0.000%5.6%2026-08-06 20:20
William Hill🎯1.80I 55.56%NM 52.63%EV -6.59%E -3.66%K -8.24%G +0.000%2.00I 50.00%NM 47.37%EV -3.79%E -1.89%K -3.79%G +0.000%5.6%2026-08-06 20:50
Bet Victor🎯1.80I 55.56%NM 52.00%EV -6.59%E -3.66%K -8.24%G +0.000%1.95I 51.28%NM 48.00%EV -6.19%E -3.18%K -6.52%G +0.000%6.8%2026-08-06 23:55
betano_uk🎯1.80I 55.56%NM 52.00%EV -6.59%E -3.66%K -8.24%G +0.000%1.95I 51.28%NM 48.00%EV -6.19%E -3.18%K -6.52%G +0.000%6.8%2026-08-07 00:55
Grosvenor🎯1.78I 56.18%NM 51.76%EV -7.63%E -4.29%K -9.78%G +0.000%1.91I 52.36%NM 48.24%EV -8.12%E -4.25%K -8.92%G +0.000%8.5%2026-08-06 21:40
Unibet (FR)🎯1.77I 56.50%NM 51.77%EV -8.15%E -4.60%K -10.58%G +0.000%1.90I 52.63%NM 48.23%EV -8.60%E -4.53%K -9.55%G +0.000%9.1%2026-08-07 01:50
Winamax (FR)🎯1.74I 57.47%NM 51.93%EV -9.70%E -5.58%K -13.11%G +0.000%1.88I 53.19%NM 48.07%EV -9.56%E -5.09%K -10.86%G +0.000%10.7%2026-08-07 00:00
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 (6)

BookmakerLocalVisitMargin ▲Updated
Polymarket◎1.96I 51.02%NM 50.51%2.00I 50.00%NM 49.49%1.0%2026-08-06 20:20
Kalshi◎1.96I 51.02%NM 50.51%2.00I 50.00%NM 49.49%1.0%2026-08-07 00:05
ProphetX◎1.93I 51.81%NM 51.26%2.03I 49.26%NM 48.74%1.1%2026-08-07 01:11
Novig◎1.94I 51.55%NM 50.51%1.98I 50.51%NM 49.49%2.1%2026-08-07 01:45
Matchbook◎1.86I 53.76%NM 51.05%1.94I 51.55%NM 48.95%5.3%2026-08-07 02:00
Smarkets◎1.81I 55.25%NM 51.08%1.89I 52.91%NM 48.92%8.2%2026-08-07 02:00