- Matchup: Arizona Diamondbacks vs Colorado Rockies
- Scheduled Date: Wednesday, September 23, 2026
- Venue: Coors Field, Denver, CO
- Broadcast: Rockies.TV
- Betting Odds: Arizona (-128) Colorado (+106)
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The Colorado Rockies (57-99) will host the Arizona Diamondbacks (82-74) in what promises to be an exciting game at Coors Field on Wednesday. With the odds favoring the Diamondbacks at -128 and the Rockies at +106, the over/under is set at 9. Expected starting pitchers for this matchup are Merrill Kelly for Arizona and Mason Adams for Colorado.
This season, the Diamondbacks have amassed 258 doubles and launched 157 home runs. Batting with a slugging percentage of .398, the team has struck out 1,155 times but managed to earn 519 walks. Averaging 4.4 runs per game places them 15th in the league, with a total of 662 RBIs and 1,276 hits. Their batting average stands at .244, contributing to a total of 693 runs and an on-base percentage of .316.
The Diamondbacks’ pitching staff has recorded a K/BB ratio of 2.34 and a collective WHIP of 1.28. They have conceded 178 home runs and 694 runs, ranking 16th overall. The team has allowed 1,307 hits (8.5 per 9 innings) with 634 earned runs, boasting an earned run average of 4.11 (12th in MLB). This year, they have struck out 1,094 batters while walking 467. Their FIP stands at 4.33.
Diamondbacks pitchers have faced 139 situations with opponents on base and have entered high-leverage situations 167 times. The bullpen has recorded 81 holds (19th in MLB) and a save rate of 67.3%, converting 37 out of 55 save opportunities. They have inherited 201 runners this season, with 26.9% scoring. The Diamondbacks have utilized 527 relievers throughout the year.
This season, the Arizona Diamondbacks have tallied 4,170 putouts, 1,347 assists, and 62 errors, yielding a fielding percentage of .989—ranking 2nd in the league. They have converted 134 double plays, achieving a 71.3% rate of turning balls in play into outs over 12,510 innings, placing them 7th in MLB.
Merrill Kelly has pitched for 1,164 innings, accumulating 1,022 strikeouts in his career. His career record stands at 74-67, with a FIP of 3.88 after facing 4,826 batters. Kelly holds an earned run average of 3.93 (509 earned runs) and a career WHIP of 1.235, allowing 1,069 hits (8.3 hits per 9 innings) with 369 walks.
The Colorado Rockies have hit 170 home runs and recorded 696 RBIs this season. They’ve accumulated 273 doubles, walked 489 times, and scored 727 runs. With an on-base percentage of .323 and batting average of .254, the Rockies hold a team slugging percentage of .416, averaging 4.66 runs per game (7th in the league). They have struck out 1,357 times (8th in MLB), totaling 1,351 hits.
On the defensive side, the Rockies have allowed 904 runs this season with a team ERA of 5.57 (848 earned runs). They’ve given up 215 home runs and allow 5.94 runs per 9 innings, ranking 30th in MLB. With a team WHIP of 1.526 and a FIP of 4.84, their strikeout-to-walk ratio is 7.00 (1,072 strikeouts against 519 walks). They rank last in MLB in total hits given up with 1,570.
The Rockies sit 24th in MLB with a save percentage of 56.9%, deploying 483 relief pitchers this season. Their relief staff has appeared 149 times in high-leverage situations and faced runners on base 155 times. In 122 save opportunities, the Rockies have 60 holds and 25 blown saves, managing 33 saves out of 58 chances. Colorado’s bullpen has a 31.8% inherited scoring rate from 239 runners.
This season, the Rockies have a defensive efficiency of 66.8% (30th in MLB) across 12,327 innings. They have turned 125 double plays with a fielding percentage of .983 (27th in the majors). The Rockies have recorded 1,301 assists, 95 errors, and 4,109 putouts this season.
Mason Adams has faced 101 batters, giving up 26 hits and achieving 23 strikeouts in 23 innings pitched. Holding a career mark of 0-1, Adams has an earned run average of 5.09, allowing 10.2 hits per 9 innings. He has conceded 13 earned runs, maintaining a WHIP of 1.652 and a FIP of 5.0. His strikeout-to-walk ratio is currently at 1.92.
Who will emerge victorious in tonight’s MLB showdown against the spread or moneyline?
Pick: Support Colorado (+106)
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