The School of Odds
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Seattle Mariners v Tampa Bay Rays

2026-08-09 01:50 UTC — MLB

Head to Head

49 sportsbooks (16 in analysis )

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

Seattle Mariners (Local)

Prediction 52.30%1.91fair odd
EV -1.68%
Edge -0.894%
Kelly -1.91%
Growth +0.000%

assuming max odds 1.88

Bookmakers’ predictions’ distribution
51.59%52.37%52.26%53.25%MIN.MEANMEDIANMAX.
Odds’ distribution
1.741.821.821.8857.47%54.98%54.95%53.19%MIN.MEANMEDIANMAX.

Tampa Bay Rays (Visit)

Prediction 47.70%2.10fair odd
EV -1.26%
Edge -0.606%
Kelly -1.17%
Growth +0.000%

assuming max odds 2.07

Bookmakers’ predictions’ distribution
46.75%47.63%47.74%48.41%MIN.MEANMEDIANMAX.
Odds’ distribution
1.902.002.002.0752.63%49.99%50.00%48.31%MIN.MEANMEDIANMAX.

For Head to Head, Interquartile mean (Vetted List) estimates these probabilities: Seattle Mariners (Local): 52.30%; Tampa Bay Rays (Visit): 47.70%. For Tampa Bay Rays (Visit), that estimate is equivalent to fair decimal odds of 2.10. No eligible bookmaker offers odds above that level: the best available odds are 2.07, with an expected value of -1.26%; they do not produce positive expected value.

Sportsbook Odds (49 sportsbooks)

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

BookmakerLocal ▼VisitMarginUpdated
Pinnacle🎯1.88I 53.19%NM 51.92%EV -1.68%E -0.894%K -1.91%G +0.000%2.03I 49.26%NM 48.08%EV -3.16%E -1.56%K -3.07%G +0.000%2.5%2026-08-08 01:35
Caesars🎯1.87I 53.48%NM 52.30%EV -2.20%E -1.18%K -2.53%G +0.000%2.05I 48.78%NM 47.70%EV -2.21%E -1.08%K -2.10%G +0.000%2.3%2026-08-07 21:05
GTbets🎯1.87I 53.48%NM 52.30%EV -2.20%E -1.18%K -2.53%G +0.000%2.05I 48.78%NM 47.70%EV -2.21%E -1.08%K -2.10%G +0.000%2.3%2026-08-07 20:14
Hard Rock Bet🎯1.87I 53.48%NM 52.30%EV -2.20%E -1.18%K -2.53%G +0.000%2.05I 48.78%NM 47.70%EV -2.21%E -1.08%K -2.10%G +0.000%2.3%2026-08-08 00:00
LowVig.ag🎯1.87I 53.48%NM 52.17%EV -2.20%E -1.18%K -2.53%G +0.000%2.04I 49.02%NM 47.83%EV -2.69%E -1.32%K -2.58%G +0.000%2.5%2026-08-07 18:40
BetOnline.ag🎯1.87I 53.48%NM 52.17%EV -2.20%E -1.18%K -2.53%G +0.000%2.04I 49.02%NM 47.83%EV -2.69%E -1.32%K -2.58%G +0.000%2.5%2026-08-07 18:40
1xBet🎯1.86I 53.76%NM 52.67%EV -2.73%E -1.47%K -3.17%G +0.000%2.07I 48.31%NM 47.33%EV -1.26%E -0.606%K -1.17%G +0.000%2.1%2026-08-07 19:10
Unibet (SE)🎯1.83I 54.64%NM 52.47%EV -4.30%E -2.35%K -5.18%G +0.000%2.02I 49.50%NM 47.53%EV -3.64%E -1.80%K -3.57%G +0.000%4.1%2026-08-08 00:50
Unibet (NL)🎯1.83I 54.64%NM 52.47%EV -4.30%E -2.35%K -5.18%G +0.000%2.02I 49.50%NM 47.53%EV -3.64%E -1.80%K -3.57%G +0.000%4.1%2026-08-08 00:50
BetRivers🎯1.83I 54.64%NM 52.47%EV -4.30%E -2.35%K -5.18%G +0.000%2.02I 49.50%NM 47.53%EV -3.64%E -1.80%K -3.57%G +0.000%4.1%2026-08-08 00:50
Svenska Spel🎯1.83I 54.64%NM 52.47%EV -4.30%E -2.35%K -5.18%G +0.000%2.02I 49.50%NM 47.53%EV -3.64%E -1.80%K -3.57%G +0.000%4.1%2026-08-08 00:50
Unibet (UK)🎯1.83I 54.64%NM 52.22%EV -4.30%E -2.35%K -5.18%G +0.000%2.00I 50.00%NM 47.78%EV -4.59%E -2.30%K -4.59%G +0.000%4.6%2026-08-07 18:44
PointsBet (AU)🎯1.83I 54.64%NM 52.22%EV -4.30%E -2.35%K -5.18%G +0.000%2.00I 50.00%NM 47.78%EV -4.59%E -2.30%K -4.59%G +0.000%4.6%2026-08-07 18:45
Coral🎯1.83I 54.64%NM 52.22%EV -4.30%E -2.35%K -5.18%G +0.000%2.00I 50.00%NM 47.78%EV -4.59%E -2.30%K -4.59%G +0.000%4.6%2026-08-07 19:20
Ladbrokes (UK)🎯1.83I 54.64%NM 52.22%EV -4.30%E -2.35%K -5.18%G +0.000%2.00I 50.00%NM 47.78%EV -4.59%E -2.30%K -4.59%G +0.000%4.6%2026-08-07 19:20
BetMGM🎯1.83I 54.64%NM 52.22%EV -4.30%E -2.35%K -5.18%G +0.000%2.00I 50.00%NM 47.78%EV -4.59%E -2.30%K -4.59%G +0.000%4.6%2026-08-07 19:20
Fanatics🎯1.83I 54.64%NM 52.22%EV -4.30%E -2.35%K -5.18%G +0.000%2.00I 50.00%NM 47.78%EV -4.59%E -2.30%K -4.59%G +0.000%4.6%2026-08-07 21:15
Ladbrokes (AU)🎯1.83I 54.64%NM 51.97%EV -4.30%E -2.35%K -5.18%G +0.000%1.98I 50.51%NM 48.03%EV -5.55%E -2.80%K -5.66%G +0.000%5.1%2026-08-07 19:20
Neds🎯1.83I 54.64%NM 51.97%EV -4.30%E -2.35%K -5.18%G +0.000%1.98I 50.51%NM 48.03%EV -5.55%E -2.80%K -5.66%G +0.000%5.1%2026-08-07 19:20
Fliff🎯1.83I 54.64%NM 51.59%EV -4.30%E -2.35%K -5.18%G +0.000%1.95I 51.28%NM 48.41%EV -6.98%E -3.58%K -7.35%G +0.000%5.9%2026-08-07 18:50
FanDuel🎯1.82I 54.95%NM 52.85%EV -4.82%E -2.65%K -5.88%G +0.000%2.04I 49.02%NM 47.15%EV -2.69%E -1.32%K -2.58%G +0.000%4.0%2026-08-07 22:50
Bet Right🎯1.82I 54.95%NM 52.60%EV -4.82%E -2.65%K -5.88%G +0.000%2.02I 49.50%NM 47.40%EV -3.64%E -1.80%K -3.57%G +0.000%4.5%2026-08-07 18:50
DraftKings🎯1.82I 54.95%NM 52.48%EV -4.82%E -2.65%K -5.88%G +0.000%2.01I 49.75%NM 47.52%EV -4.12%E -2.05%K -4.08%G +0.000%4.7%2026-08-07 21:15
PlayUp🎯1.82I 54.95%NM 52.36%EV -4.82%E -2.65%K -5.88%G +0.000%2.00I 50.00%NM 47.64%EV -4.59%E -2.30%K -4.59%G +0.000%4.9%2026-08-07 19:20
Coolbet🎯1.82I 54.95%NM 52.36%EV -4.82%E -2.65%K -5.88%G +0.000%2.00I 50.00%NM 47.64%EV -4.59%E -2.30%K -4.59%G +0.000%4.9%2026-08-07 23:35
Unibet🎯1.82I 54.95%NM 52.36%EV -4.82%E -2.65%K -5.88%G +0.000%2.00I 50.00%NM 47.64%EV -4.59%E -2.30%K -4.59%G +0.000%4.9%2026-08-08 00:50
Casumo🎯1.82I 54.95%NM 52.36%EV -4.82%E -2.65%K -5.88%G +0.000%2.00I 50.00%NM 47.64%EV -4.59%E -2.30%K -4.59%G +0.000%4.9%2026-08-08 00:50
LeoVegas (SE)🎯1.82I 54.95%NM 52.36%EV -4.82%E -2.65%K -5.88%G +0.000%2.00I 50.00%NM 47.64%EV -4.59%E -2.30%K -4.59%G +0.000%4.9%2026-08-08 00:50
betPARX🎯1.82I 54.95%NM 52.36%EV -4.82%E -2.65%K -5.88%G +0.000%2.00I 50.00%NM 47.64%EV -4.59%E -2.30%K -4.59%G +0.000%4.9%2026-08-08 00:50
ATG (SE)🎯1.82I 54.95%NM 52.36%EV -4.82%E -2.65%K -5.88%G +0.000%2.00I 50.00%NM 47.64%EV -4.59%E -2.30%K -4.59%G +0.000%4.9%2026-08-08 00:50
Bally Bet🎯1.82I 54.95%NM 52.36%EV -4.82%E -2.65%K -5.88%G +0.000%2.00I 50.00%NM 47.64%EV -4.59%E -2.30%K -4.59%G +0.000%4.9%2026-08-08 00:50
Bovada🎯1.81I 55.25%NM 52.86%EV -5.34%E -2.95%K -6.60%G +0.000%2.03I 49.26%NM 47.14%EV -3.16%E -1.56%K -3.07%G +0.000%4.5%2026-08-07 22:49
TABtouch🎯1.81I 55.25%NM 52.49%EV -5.34%E -2.95%K -6.60%G +0.000%2.00I 50.00%NM 47.51%EV -4.59%E -2.30%K -4.59%G +0.000%5.2%2026-08-08 00:50
theScore Bet🎯1.80I 55.56%NM 53.25%EV -5.87%E -3.26%K -7.33%G +0.000%2.05I 48.78%NM 46.75%EV -2.21%E -1.08%K -2.10%G +0.000%4.3%2026-08-07 19:10
SportsBet🎯1.80I 55.56%NM 52.63%EV -5.87%E -3.26%K -7.33%G +0.000%2.00I 50.00%NM 47.37%EV -4.59%E -2.30%K -4.59%G +0.000%5.6%2026-08-07 18:40
Paddy Power🎯1.80I 55.56%NM 52.63%EV -5.87%E -3.26%K -7.33%G +0.000%2.00I 50.00%NM 47.37%EV -4.59%E -2.30%K -4.59%G +0.000%5.6%2026-08-07 18:40
888sport🎯1.80I 55.56%NM 52.63%EV -5.87%E -3.26%K -7.33%G +0.000%2.00I 50.00%NM 47.37%EV -4.59%E -2.30%K -4.59%G +0.000%5.6%2026-08-07 18:50
Betr (AU)🎯1.80I 55.56%NM 52.63%EV -5.87%E -3.26%K -7.33%G +0.000%2.00I 50.00%NM 47.37%EV -4.59%E -2.30%K -4.59%G +0.000%5.6%2026-08-07 18:50
888sport (SE)🎯1.80I 55.56%NM 52.63%EV -5.87%E -3.26%K -7.33%G +0.000%2.00I 50.00%NM 47.37%EV -4.59%E -2.30%K -4.59%G +0.000%5.6%2026-08-07 18:49
Mr Green (SE)🎯1.80I 55.56%NM 52.63%EV -5.87%E -3.26%K -7.33%G +0.000%2.00I 50.00%NM 47.37%EV -4.59%E -2.30%K -4.59%G +0.000%5.6%2026-08-07 18:50
Betclic (FR)🎯1.80I 55.56%NM 52.38%EV -5.87%E -3.26%K -7.33%G +0.000%1.98I 50.51%NM 47.62%EV -5.55%E -2.80%K -5.66%G +0.000%6.1%2026-08-07 18:44
Winamax (DE)🎯1.80I 55.56%NM 52.38%EV -5.87%E -3.26%K -7.33%G +0.000%1.98I 50.51%NM 47.62%EV -5.55%E -2.80%K -5.66%G +0.000%6.1%2026-08-07 18:45
LiveScore Bet🎯1.80I 55.56%NM 52.38%EV -5.87%E -3.26%K -7.33%G +0.000%1.98I 50.51%NM 47.62%EV -5.55%E -2.80%K -5.66%G +0.000%6.1%2026-08-08 00:50
Virgin Bet🎯1.80I 55.56%NM 52.38%EV -5.87%E -3.26%K -7.33%G +0.000%1.98I 50.51%NM 47.62%EV -5.55%E -2.80%K -5.66%G +0.000%6.1%2026-08-08 00:50
Bet Victor🎯1.80I 55.56%NM 52.00%EV -5.87%E -3.26%K -7.33%G +0.000%1.95I 51.28%NM 48.00%EV -6.98%E -3.58%K -7.35%G +0.000%6.8%2026-08-07 18:45
ReBet🎯1.77I 56.50%NM 52.42%EV -7.43%E -4.20%K -9.65%G +0.000%1.95I 51.28%NM 47.58%EV -6.98%E -3.58%K -7.35%G +0.000%7.8%2026-08-07 22:59
Grosvenor🎯1.75I 57.14%NM 52.45%EV -8.48%E -4.85%K -11.31%G +0.000%1.93I 51.81%NM 47.55%EV -7.93%E -4.11%K -8.53%G +0.000%9.0%2026-08-08 00:50
Unibet (FR)🎯1.74I 57.47%NM 52.20%EV -9.00%E -5.17%K -12.17%G +0.000%1.90I 52.63%NM 47.80%EV -9.36%E -4.93%K -10.41%G +0.000%10.1%2026-08-07 18:45
Winamax (FR)🎯1.74I 57.47%NM 52.20%EV -9.00%E -5.17%K -12.17%G +0.000%1.90I 52.63%NM 47.80%EV -9.36%E -4.93%K -10.41%G +0.000%10.1%2026-08-07 18:45
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)

BookmakerLocalVisitMargin ▲Updated
Polymarket◎1.89I 52.91%NM 52.39%2.08I 48.08%NM 47.61%1.0%2026-08-07 21:35
Kalshi◎1.89I 52.91%NM 52.39%2.08I 48.08%NM 47.61%1.0%2026-08-08 00:10
Novig◎1.89I 52.91%NM 52.15%2.06I 48.54%NM 47.85%1.5%2026-08-08 01:35
Smarkets◎1.74I 57.47%NM 52.20%1.90I 52.63%NM 47.80%10.1%2026-08-07 18:45