June 20, 2025 4:40 AM EST

Arizona Diamondbacks vs Colorado Rockies 6/20/2025

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The Arizona Diamondbacks are 17-18 on the road this season and are heavy favorites to beat the Colorado Rockies who are 7-26 at home. The Diamondbacks 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. Diamondbacks starter Zac Gallen is forecasted to have a better game than Rockies starter Austin Gomber. Zac Gallen has a 46% chance of having a Quality Start (QS) while Austin Gomber has a 33% chance of a QS. If Zac Gallen has a quality start the Diamondbacks has a 81% chance of winning. His simulated strikeout to walk ratio is 4.4 and he has a 29% chance of having a 5 to 1 K/BB ratio. When he has a 5/1 ratio the Diamondbacks win 61%. In Austin Gomber quality starts the Rockies win 64%. He has a 22% 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 Colorado Rockies is Thairo Estrada who averaged 2.33 hits+walks+RBI. He has a 40% chance of having a big game with 3+ Hits, Walks, RBI and if he has a big game the Rockies have a 50% chance of winning. The most productive batter for the Arizona Diamondbacks is Ketel Marte who averaged 3.08 hits+walks+RBI. He has a 54% chance of having a big game with 3+ Hits, Walks, RBI and if he has a big game the Diamondbacks have a 73% chance of winning.

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

Arizona DiamondbacksRECORDColorado RockiesRECORDUNITS EDGE
Record on the Road17-18, 49% -57Record at Home7-26, 21% -1423Arizona Diamondbacks
VS Colorado Rockies2-1, 67% -48VS Arizona Diamondbacks1-2, 33% 70Colorado Rockies
vs Team Under .50014-10, 58% 66vs Team .500 or Better7-45, 13% -3082Arizona Diamondbacks
Record as Road Favorite5-8, 38% -448Record as Home Underdog6-25, 19% -1412Arizona Diamondbacks
When Zac Gallen Starts6-10, 38% -390When Austin Gomber Starts1-1, 50% -47Colorado Rockies

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

Arizona DiamondbacksRECORDColorado RockiesRECORDUNITS EDGE
Record on the Road4-8, 33% -284Record at Home2-9, 18% -462Arizona Diamondbacks
VS Colorado Rockies0-0 No GamesVS Arizona Diamondbacks0-0 No GamesN/A
vs Team Under .5009-6, 60% 224vs Team .500 or Better2-15, 12% -1062Arizona Diamondbacks
Record as Road Favorite0-3, 0% -300Record as Home Underdog2-9, 18% -462Arizona Diamondbacks
When Zac Gallen Starts2-4, 33% -218When Austin Gomber Starts1-0, 100% 53Colorado Rockies

OVER-UNDER TRENDS

Arizona DiamondbacksRECORDColorado RockiesRECORDO-U EDGE
OVER-UNDER ON ROAD18-15, 55% OverOVER-UNDER AT HOME17-16, 52% OverOVER
ROAD OVER-UNDER PAST 30 DAYS5-5, 50% OverROAD OVER-UNDER PAST 30 DAYS5-6, 45% OverUNDER
ROAD OVER-UNDER LAST SEASON44-34, 56% OverROAD OVER-UNDER LAST SEASON38-40, 49% OverOVER
OVER-UNDER IN Zac Gallen STARTS8-8, 50% OverOVER-UNDER IN Austin Gomber STARTS1-1, 50% 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) - Arizona Diamondbacks Road Games: 20-15, 57% +94 Colorado Rockies Home Games: 20-13, 61% -2 SIDE VALUE (PAST 30 DAYS) - Arizona Diamondbacks Road Games: 5-7, 42% -205 Colorado Rockies Home Games: 5-6, 45% -428

MONEY LINE (Current Season) - Arizona Diamondbacks Road Games: 20-15, 57% +169 Colorado Rockies Home Games: 25-8, 76% +522 MONEY LINE (PAST 30 DAYS) - Arizona Diamondbacks Road Games: 7-5, 58% +156 Colorado Rockies Home Games: 9-2, 82% +128

OVER-UNDER RECORD (Current Season) - Arizona Diamondbacks Road Games: 12-17, 41% -670 Colorado Rockies Home Games: 15-18, 45% -480 OVER-UNDER RECORD (PAST 30 DAYS) - Arizona Diamondbacks Road Games: 3-6, 33% -360 Colorado Rockies Home Games: 5-6, 45% -160

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