October 20, 2025 2:08 PM EST

Seattle Mariners vs Toronto Blue Jays 10/20/2025

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The Toronto Blue Jays are 57-29 at home this season and are solid favorites to beat the Seattle Mariners who are 42-44 on the road this season. The Blue Jays have a better than 55% chance of winning based on 10,000 game simulations generated one play at a time by the AccuScore Simulation Supercomputer. Blue Jays starter Shane Bieber is forecasted to have a better game than Mariners starter George Kirby. Shane Bieber has a 52% chance of having a Quality Start (QS) while George Kirby has a 42% chance of a QS. If Shane Bieber has a quality start the Blue Jays has a 74% chance of winning. His simulated strikeout to walk ratio is 4.8 and he has a 42% chance of having a 5 to 1 K/BB ratio. When he has a 5/1 ratio the Blue Jays win 61%. In George Kirby quality starts the Mariners win 68%. He has a 41% chance of having a 5 to 1 K/BB ratio and if he does his team wins 68% of simulations. In simulations we tracked the batter for each team that was most productive based his average hits, walks and RBI per simulation. The most productive batter for the Toronto Blue Jays is George Springer who averaged 2.28 hits+walks+RBI. He has a 39% chance of having a big game with 3+ Hits, Walks, RBI and if he has a big game the Blue Jays have a 67% chance of winning. The most productive batter for the Seattle Mariners is Cal Raleigh who averaged 2.12 hits+walks+RBI. He has a 35% chance of having a big game with 3+ Hits, Walks, RBI and if he has a big game the Mariners have a 61% chance of winning.

CURRENT SEASON: We advise relying on these trends after the first 6 to 8 weeks of the season. UNITS EDGE FAVORS: Toronto Blue Jays

Seattle MarinersRECORDToronto Blue JaysRECORDUNITS EDGE
Record on the Road42-44, 49% -376Record at Home57-29, 66% 1651Toronto Blue Jays
VS Toronto Blue Jays5-7, 42% -200VS Seattle Mariners7-5, 58% 250Toronto Blue Jays
vs Team .500 or Better53-48, 52% 51vs Team .500 or Better55-45, 55% 1009Toronto Blue Jays
Record As Road Underdog19-21, 48% 164Record As Home Favorite37-21, 64% 326Toronto Blue Jays
When George Kirby Starts13-12, 52% -231When Shane Bieber Starts6-3, 67% 101Toronto Blue Jays

PAST 30 DAYS: We advise incorporating these trends along with the current Season after the first 6 to 8 weeks. UNITS EDGE FAVORS: Seattle Mariners

Seattle MarinersRECORDToronto Blue JaysRECORDUNITS EDGE
Record on the Road5-2, 71% 281Record at Home7-4, 64% 123Seattle Mariners
VS Toronto Blue Jays3-3, 50% 37VS Seattle Mariners3-3, 50% 0Seattle Mariners
vs Team .500 or Better3-6, 33% -263vs Team .500 or Better8-7, 53% 105Toronto Blue Jays
Record As Road Underdog3-2, 60% 137Record As Home Favorite6-3, 67% 96Seattle Mariners
When George Kirby Starts2-3, 40% -94When Shane Bieber Starts2-2, 50% -32Toronto Blue Jays

OVER-UNDER TRENDS

Seattle MarinersRECORDToronto Blue JaysRECORDO-U EDGE
OVER-UNDER ON ROAD51-34, 60% OverOVER-UNDER AT HOME47-35, 57% OverOVER
ROAD OVER-UNDER PAST 30 DAYS6-1, 86% OverROAD OVER-UNDER PAST 30 DAYS6-5, 55% OverOVER
ROAD OVER-UNDER LAST SEASON45-31, 59% OverROAD OVER-UNDER LAST SEASON43-34, 56% OverOVER
OVER-UNDER IN George Kirby STARTS14-10, 58% OverOVER-UNDER IN Shane Bieber STARTS5-4, 56% OverN/A

ACCUSCORE ADVISOR: AccuScore simulates every game thousands of times one play at a time. We are the industry standard in sports forecasting and the only company to be paid for sports picks and predictions by the biggest sports companies in the world. Our newest product, the AccuScore Advisor, provides Side Value, Money Line and Over-Under picks for every MLB game and rates them as One, Two, Three or Four Star picks. Three and Four Star picks have delivered over +10,000 units of profit the past 2 seasons. Visit AccuScore.com to find out what AccuScore\'s Advisor recommends for this game. The following trends are AccuScore\'s RIGHT-WRONG records and units (+/-) when making picks involving these teams.

SIDE VALUE (Current Season) - Seattle Mariners Road Games: 40-46, 47% -664 Toronto Blue Jays Home Games: 46-40, 53% +44 SIDE VALUE (PAST 30 DAYS) - Seattle Mariners Road Games: 3-4, 43% -67 Toronto Blue Jays Home Games: 6-5, 55% +8

MONEY LINE (Current Season) - Seattle Mariners Road Games: 35-51, 41% -2304 Toronto Blue Jays Home Games: 48-38, 56% -292 MONEY LINE (PAST 30 DAYS) - Seattle Mariners Road Games: 3-4, 43% -128 Toronto Blue Jays Home Games: 6-5, 55% -75

OVER-UNDER RECORD (Current Season) - Seattle Mariners Road Games: 28-44, 39% -2040 Toronto Blue Jays Home Games: 40-33, 55% + 370 OVER-UNDER RECORD (PAST 30 DAYS) - Seattle Mariners Road Games: 6-1, 86% + 490 Toronto Blue Jays Home Games: 7-2, 78% + 480

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