The School of Odds
Default modelInterquartile mean (Vetted List)
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Seattle Mariners v Arizona Diamondbacks

Kickoff: 2026-02-28 01:10 UTC

Closing line — the calculated probabilities and expected value from the last prices recorded before kickoff, under your selected model. The game has started, so these are not live figures. Assess the reliability of each model's probability predictions against all settled-game outcomes →

Head to Head

10 sportsbooks (6 in analysis )

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

Seattle Mariners (Local)

Prediction 55.07%1.82fair odd
EV -0.865%
Edge -0.481%
Kelly -1.08%
Growth +0.000%

assuming max odds 1.80

Bookmakers’ predictions’ distribution
53.05%55.42%55.17%58.99%MIN.MEANMEDIANMAX.
Odds’ distribution
1.621.711.711.8061.73%58.51%58.31%55.56%MIN.MEANMEDIANMAX.

Arizona Diamondbacks (Visit)

Prediction 44.93%2.23fair odd
EV +4.68%
Edge +2.01%
Kelly +3.52%
Growth +0.164%

assuming max odds 2.33

Bookmakers’ predictions’ distribution
41.01%44.58%44.83%46.95%MIN.MEANMEDIANMAX.
Odds’ distribution
2.002.162.152.3350.00%46.34%46.51%42.92%MIN.MEANMEDIANMAX.

At the last prices before kickoff, Interquartile mean (Vetted List) estimated these probabilities for Head to Head: Seattle Mariners (Local): 55.07%; Arizona Diamondbacks (Visit): 44.93%. For Arizona Diamondbacks (Visit), that estimate was equivalent to fair decimal odds of 2.23. 2 bookmakers offered closing odds above that level; the best were 2.33, corresponding to a positive expected value of +4.68%.

Sportsbook Odds (10 sportsbooks)

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

BookmakerLocalVisit ▼MarginUpdated
BetRivers🎯1.62I 61.73%NM 58.99%EV -10.78%E -6.65%K -17.38%G +0.000%2.33I 42.92%NM 41.01%EV +4.68%E +2.01%K +3.52%G +0.164%4.6%2026-02-27 17:49
betPARX🎯1.62I 61.73%NM 58.99%EV -10.78%E -6.65%K -17.38%G +0.000%2.33I 42.92%NM 41.01%EV +4.68%E +2.01%K +3.52%G +0.164%4.6%2026-02-27 17:50
Hard Rock Bet🎯1.71I 58.48%NM 56.27%EV -5.82%E -3.40%K -8.20%G +0.000%2.20I 45.45%NM 43.73%EV -1.16%E -0.529%K -0.971%G +0.000%3.9%2026-02-27 21:17
Pinnacle🎯1.75I 57.14%NM 55.13%EV -3.62%E -2.07%K -4.83%G +0.000%2.15I 46.51%NM 44.87%EV -3.41%E -1.59%K -2.97%G +0.000%3.7%2026-02-27 21:19
theScore Bet🎯1.71I 58.48%NM 55.70%EV -5.82%E -3.40%K -8.20%G +0.000%2.15I 46.51%NM 44.30%EV -3.41%E -1.59%K -2.97%G +0.000%5.0%2026-02-27 21:19
Fliff🎯1.62I 61.73%NM 57.03%EV -10.78%E -6.65%K -17.38%G +0.000%2.15I 46.51%NM 42.97%EV -3.41%E -1.59%K -2.97%G +0.000%8.2%2026-02-27 23:34
FanDuel🎯1.72I 58.14%NM 55.21%EV -5.27%E -3.06%K -7.32%G +0.000%2.12I 47.17%NM 44.79%EV -4.76%E -2.24%K -4.25%G +0.000%5.3%2026-02-27 21:09
DraftKings🎯1.77I 56.50%NM 54.26%EV -2.52%E -1.42%K -3.27%G +0.000%2.10I 47.62%NM 45.74%EV -5.66%E -2.69%K -5.14%G +0.000%4.1%2026-02-27 22:19
BetOnline.ag🎯1.80I 55.56%NM 53.25%EV -0.865%E -0.481%K -1.08%G +0.000%2.05I 48.78%NM 46.75%EV -7.90%E -3.86%K -7.53%G +0.000%4.3%2026-02-28 00:54
BetUS🎯1.77I 56.50%NM 53.05%EV -2.52%E -1.42%K -3.27%G +0.000%2.00I 50.00%NM 46.95%EV -10.15%E -5.07%K -10.15%G +0.000%6.5%2026-02-27 22:19
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.