September 15, 2025 10:52 AM EST

Chicago Cubs vs Pittsburgh Pirates 9/15/2025

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The Chicago Cubs are 39-35 on the road this season and are heavy favorites to beat the Pittsburgh Pirates who are 42-33 at home. The Cubs 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. Cubs starter Jameson Taillon is forecasted to have a better game than Pirates starter Braxton Ashcraft. Jameson Taillon has a 58% chance of having a Quality Start (QS) while Braxton Ashcraft has a 48% chance of a QS. If Jameson Taillon has a quality start the Cubs has a 73% chance of winning. His simulated strikeout to walk ratio is 4 and he has a 33% chance of having a 5 to 1 K/BB ratio. When he has a 5/1 ratio the Cubs win 58%. In Braxton Ashcraft quality starts the Pirates win 64%. He has a 26% chance of having a 5 to 1 K/BB ratio and if he does his team wins 64% 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 Pittsburgh Pirates is Tommy Pham who averaged 1.88 hits+walks+RBI. He has a 29% chance of having a big game with 3+ Hits, Walks, RBI and if he has a big game the Pirates have a 60% chance of winning. The most productive batter for the Chicago Cubs is Seiya Suzuki who averaged 2.04 hits+walks+RBI. He has a 33% chance of having a big game with 3+ Hits, Walks, RBI and if he has a big game the Cubs have a 72% chance of winning.

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

Chicago CubsRECORDPittsburgh PiratesRECORDUNITS EDGE
Record on the Road39-35, 53% 16Record at Home42-33, 56% 896Pittsburgh Pirates
VS Pittsburgh Pirates7-3, 70% 136VS Chicago Cubs3-7, 30% -294Chicago Cubs
vs Team Under .50049-25, 66% 576vs Team .500 or Better37-52, 42% -368Chicago Cubs
Record as Road Favorite25-18, 58% 1Record as Home Underdog27-18, 60% 1389Pittsburgh Pirates
When Jameson Taillon Starts11-10, 52% -153When Braxton Ashcraft Starts4-2, 67% 327Pittsburgh Pirates

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

Chicago CubsRECORDPittsburgh PiratesRECORDUNITS EDGE
Record on the Road7-5, 58% 25Record at Home8-4, 67% 352Pittsburgh Pirates
VS Pittsburgh Pirates2-0, 100% 95VS Chicago Cubs0-2, 0% -200Chicago Cubs
vs Team Under .50015-6, 71% 453vs Team .500 or Better7-4, 64% 454Pittsburgh Pirates
Record as Road Favorite6-5, 55% -115Record as Home Underdog5-4, 56% 209Pittsburgh Pirates
When Jameson Taillon Starts3-0, 100% 304When Braxton Ashcraft Starts2-1, 67% 99Chicago Cubs

OVER-UNDER TRENDS

Chicago CubsRECORDPittsburgh PiratesRECORDO-U EDGE
OVER-UNDER ON ROAD35-36, 49% OverOVER-UNDER AT HOME31-38, 45% OverUNDER
ROAD OVER-UNDER PAST 30 DAYS3-8, 27% OverROAD OVER-UNDER PAST 30 DAYS5-6, 45% OverUNDER
ROAD OVER-UNDER LAST SEASON40-36, 53% OverROAD OVER-UNDER LAST SEASON43-38, 53% OverUNDER
OVER-UNDER IN Jameson Taillon STARTS9-12, 43% OverOVER-UNDER IN Braxton Ashcraft STARTS2-4, 33% 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) - Chicago Cubs Road Games: 37-37, 50% -1017 Pittsburgh Pirates Home Games: 35-40, 47% -309 SIDE VALUE (PAST 30 DAYS) - Chicago Cubs Road Games: 6-6, 50% -178 Pittsburgh Pirates Home Games: 3-9, 25% -563

MONEY LINE (Current Season) - Chicago Cubs Road Games: 42-32, 57% +35 Pittsburgh Pirates Home Games: 39-36, 52% -496 MONEY LINE (PAST 30 DAYS) - Chicago Cubs Road Games: 9-3, 75% +389 Pittsburgh Pirates Home Games: 7-5, 58% -101

OVER-UNDER RECORD (Current Season) - Chicago Cubs Road Games: 39-22, 64% + 1480 Pittsburgh Pirates Home Games: 31-32, 49% -420 OVER-UNDER RECORD (PAST 30 DAYS) - Chicago Cubs Road Games: 6-4, 60% + 160 Pittsburgh Pirates Home Games: 6-4, 60% + 160

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