MLB Prop Bets: Arizona Diamondbacks vs Colorado Rockies (May 21, 2026)
The Colorado Rockies (19-31) face the Arizona Diamondbacks (25-23) at Chase Field on Thursday at 9:40pm (ET). Let's take a look at the MLB Prop Bets for the matchup. Tomoyuki Sugano is the probable pitcher for the Rockies, while Eduardo Rodriguez is the probable pitcher for the Diamondbacks. The Diamondbacks are favored to win at -194, while the Rockies are at +159. The total runs line is set at 9.0, with OVER at -120 and UNDER at +100.
- The Rockies (-122) have a 26-24 Run Line record this season, while the Diamondbacks (+102) hold a record of 30-18.
- The Rockies have a 23-25-2 O/U record this season (meaning 23 games have gone over the total runs line, 25 have gone under and two have resulted in a push). The Diamondbacks have a 23-21-4 O/U record.
Scoring Insights
- The Rockies are averaging 4.2 runs per game this season (19th in the league). Comparatively, the Diamondbacks are averaging +0.4 more at 4.6 runs (9th).
- In the field, the Rockies are allowing a whopping 5.3 runs per game this season (26th in the league), while the Diamondbacks are allowing an average of 4.6 runs (22nd).
Let's take a look at how these teams perform in some other key statistical areas.
Batting Insights:
Batting Average
- Looking at their batting averages this season, the Rockies are at .244 (ranking 11th in the Major leagues), while the Diamondbacks are batting .246 (8th).
Home Runs
- In terms of total home runs this season, the Diamondbacks have hit 44 (T22nd in the Major Leagues). Meanwhile, the Rockies have managed 44 (T22nd).
Runs Batted In
- Finally, looking at their runs batted in, the Rockies have recorded 201 RBIs to rank 21st in the MLB this season. Comparatively, the Diamondbacks have recorded 212 RBIs to rank T12th.
Pitching Insights:
Earned Run Average
- The Diamondbacks have an earned run average of 4.23 this season (19th in the Majors), while The Rockies have an ERA of 5.00 (28th).
Strikeouts
- Turning our attention to total strikeouts, the Rockies have recorded 370 this season, ranking 28th in the MLB. Meanwhile, the Diamondbacks rank 29th for total strikeouts, recording 351.
Opponent Batting Average
- Opponents are batting an average of .242 against the Diamondbacks this season (16th in the Major Leagues). Comparatively, the Rockies' opponents are at .277 (30th).
First Innings Moneyline
- Here are their first innings moneyline records in 2026.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Rockies | 15-17-18 | 9-10-6 | 6-7-12 | 0-1-0 | 15-16-18 | 0-0-0 | 3-5-2 |
| Diamondbacks | 12-13-23 | 6-5-11 | 6-8-10 | 6-3-9 | 6-10-14 | 0-0-2 | 4-2-4 |
Lead After Three Innings
- Here are their records after the first three innings in 2026.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Rockies | 14-26-10 | 8-13-4 | 6-13-6 | 0-1-0 | 14-25-10 | 0-0-0 | 3-7-0 |
| Diamondbacks | 18-21-9 | 10-6-6 | 7-14-3 | 11-3-4 | 7-18-5 | 1-1-0 | 6-3-1 |
NRFI/YRFI
The NRFI market is paying -110 and the YRFI is paying -115.
- The NRFI is 18-32 in Rockies games this season. The Diamondbacks have a 19-29 NRFI record.
Last Time They Met
The Diamondbacks recorded an 8-6 victory over the Rockies at Coors Field on Sunday. Corbin Carroll was crushing the ball in that matchup, hitting 2 home runs and recording 3 RBIs.
