Review Mariners vs Blue Jays Betting Line and Odds - 10/20/2025

+105O/U: 7.5
(-110/-110)-125

George Kirby – Over/Under 3.5 Strikeouts (+120/-150)
George Kirby’s 95.5-mph fastball velocity this year grades out in the 88th percentile out of all starting pitchers.
Explain: Velocity is a key component to fastball success in generating strikeouts and preventing runs.
Cal Raleigh – Over/Under 1.5 Total Bases (+110/-145)
Cal Raleigh has seen a big gain in his exit velocity on flyballs this season; just compare his 97-mph average to last year’s 94.9-mph EV.
Explain: Most home runs are flyballs, and the harder those flyballs are hit, the more often they turn into home runs. This is a strong indicator of power.
Randy Arozarena – Over/Under 0.5 Total Bases (-140/+110)
Randy Arozarena hits a lot of his flyballs to center field (38.3% — 84th percentile) and is fortunate to face the league’s 10th-shallowest CF fences today.
Explain: This player’s skill set matches up particularly well with the park he’s in today, which may lead to better-than-usual performance.

Shane Bieber – Over/Under 11.5 Pitching Outs (-130/+100)
Recording 17.3 outs per start this year on average, Shane Bieber places him the 89th percentile.
Explain: A pitcher who averages more outs per start than his Outs prop may be a good bet to go over, and visa-versa for the under.
Daulton Varsho – Over/Under 0.5 Total Bases (-155/+120)
Seattle’s #2-ranked outfield defense on the slate today poses a formidable challenge for Daulton Varsho, who tends to hit a lot of flyballs.
Explain: This player’s skill set matches up poorly with the opposing team’s defensive strength, which may lead to worse-than-usual performance.
Toronto Blue Jays – Moneyline (-125)
The worst projected lineup of all teams on the slate in terms of overall hitting ability is that of the the Toronto Blue Jays.
Explain: A pitcher who faces a weak opposing offense will be more likely to exceed his usual performance, particularly in terms of hits and runs, in that game.

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