- Matchup: Colorado Rockies vs. Arizona Diamondbacks
- Date: Wednesday, August 12, 2026
- Venue: Chase Field, Phoenix, AZ
- Broadcast: DBACKS.TV
- Betting Odds: Colorado (+162) Arizona (-196)
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On Wednesday, the Arizona Diamondbacks (63-56) will host the Colorado Rockies (46-72) at Chase Field. Colorado holds odds of +162, while Arizona stands at -196. The total runs for the game are set at 9. Pitchers scheduled to start are Ryan Feltner and Merrill Kelly.
The Colorado Rockies currently boast a slugging percentage of .422, facing 1,019 strikeouts while drawing 361 walks. They have recorded 545 RBIs and 1,029 hits this season, with a batting average of .256. The Rockies have achieved 217 doubles and hit 134 home runs, scoring a total of 568 runs and maintaining an on-base percentage of .324. Averaging 4.8 runs per game, they rank 7th in the league.
In terms of pitching, the Rockies have a strikeout-to-walk ratio of 2.13 and a WHIP of 1.52. Their pitchers have allowed 164 home runs and 678 runs overall (ranked 30th). Colorado’s pitching staff has given up 1,189 hits (at a rate of 10.3 per 9 innings) and 631 earned runs, resulting in an earned run average (ERA) of 5.48 (last in the league), with 815 strikeouts. They have also walked 382 batters, finishing the season with a team FIP of 4.81.
This season, the Rockies’ bullpen has a save percentage of 57.4%, having entered 93 save situations and achieving 27 saves, while blowing 20. The relievers inherited 187 runners, with 30.5% scoring. The Rockies have used 353 pitchers this season, accumulating 44 holds (29th in the league).
Defensively, Colorado has an out conversion rate of 66.7% after 9,330 innings, ranking them 30th in MLB. With 3,110 putouts, 996 assists, and 76 errors, their fielding percentage stands at .982 (27th in MLB) with 97 double plays completed.
Ryan Feltner, who holds a career win-loss record of 13-32, has a FIP of 5.22 after facing 1,847 batters. He has allowed 440 hits (9.4 per 9 innings) and issued 165 walks. His current ERA is 5.30, having allowed 248 earned runs, with a career WHIP of 1.436 and 350 strikeouts in 421 innings pitched.
The Arizona Diamondbacks hold a slugging percentage of .394, averaging 4.51 runs per game, ranking 12th in the league. They have achieved 204 doubles, drawn 396 walks, and scored 537 runs. With 114 home runs, they have amassed 510 RBIs while enduring 869 strikeouts (29th in the league) and hitting 965 total. Their on-base percentage is .314 with a batting average of .242.
The Diamondbacks’ pitching staff has a WHIP of 1.291 and a FIP of 4.36 for the season, ranking 24th in total hits allowed (1,017). They have surrendered 532 runs and recorded a team ERA of 4.15, allowing 487 earned runs. Their strikeout-to-walk ratio is at 6.90 (808 strikeouts vs. 348 walks), alongside allowing 137 HRs and yielding 4.53 runs per 9 innings (17th in baseball).
Currently, Arizona ranks 12th in save rate at 66.7%, having utilized 395 relievers throughout the season. Their bullpen has faced 129 high-leverage situations and been called upon in 105 instances with runners on. With 116 total save situations, the Diamondbacks have tallied 70 holds and suffered 15 blown saves. They converted 30 of 45 save opportunities this season, with inheriting runners scoring at 25.0% out of 156.
Defensively, the Diamondbacks have managed an efficiency of 71.0% across 9,513 innings, ranking 9th in professional baseball. Their fielding percentage stands at .990 (2nd in the majors), with 106 double plays completed, 1,043 assists, and 44 errors this season, totaling 3,171 putouts.
Merrill Kelly boasts a career win-loss record of 73-62, with a 3.89 earned run average and allowing 8.2 hits per 9 innings pitched. He has a strikeout-to-walk ratio of 2.83 and has faced 4,662 batters throughout his MLB journey. Kelly has given up 487 earned runs, has a WHIP of 1.226, and a FIP of 3.8. Throughout his career, he has allowed a total of 1,033 hits while accumulating 991 strikeouts in 1,128 innings.
Predicting the outcome: who will emerge victorious in tonight’s MLB encounter against the spread or moneyline?
Prediction: Consider Arizona (-196) and under 9 runs.
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