Arizona Diamondbacks (20-20) vs. Texas Rangers (19-22) May 12, 2026 8:05 pm EDT The Line: Texas Rangers -136 / Arizona Diamondbacks 113; Over/Under: 8.5 (Get latest betting odds)
In this article, we will formulate a Diamondbacks vs Rangers Prediction for this MLB matchup on Tuesday, May 12 th in the second game of this series. Let’s take a look at the prediction for this MLB matchup.
The Texas Rangers have a 19-22 record this season and are sitting in the third place of the AL West. They have a 9-10 home record and are coming off a 0-1 loss at home against the Diamondbacks. They will face the Astros and the Rockies next.
The Rangers have a .232 batting average this season, .314 OBP and .365 Slugging percentage. Texas’ pitching staff has a 3.59 ERA and 1.22 WHIP. Josh Jung is the team’s best hitter with a .322 batting average. Jake Burger leads the team in RBI with 21, and Corey Seager adds a team‑high 7 home runs.
MacKenzie Gore (L) is the projected starting pitcher for the Rangers, and he has a 2-3 record, 5.18 ERA and 1.40 WHIP.
The Arizona Diamondbacks have a 20-20 record this season and are sitting in the third place of the NL West. They have an 8-11 away record and are coming off a 1-0 win on the road against the Rangers. They will face the Rockies and the Giants next.
The Diamondbacks have a .235 batting average this season, .297 OBP and .389 Slugging percentage. Arizona’s pitching staff has a 4.38 ERA and 1.29 WHIP. Ildemaro Vargas is the team’s best hitter with a .331 batting average, also leading the team in RBI with 24. Nolan Arenado adds a team‑high 6 home runs.
Zac Gallen (R) is the projected starting pitcher for the Diamondbacks, and he has a 1-3 record, 4.70 ERA and 1.49 WHIP.
The Diamondbacks are 7-2 in their last 9 meetings against the Rangers and have won their last three visits in Texas.
In this Diamondbacks vs Rangers Prediction, the Rangers are coming as -135 home favorites. Both pitchers have been struggling this season with a combined 9.88 ERA and have been in bad form, as Gallen has 10 earned runs in his last two starts and Gore 16 earned runs in his last four starts. Both offenses are better against the opposing starter throw hand, with 8.7 runs/9 combined, so I expect a high-scoring affair. Take the over 8.5 runs in this one.