My Rangers vs. Diamondbacks predictions and MLB picks for Sunday, Sept. 13, back the Rangers as a 46% favorite.
After a 6-2 Rangers win on Saturday, Texas looks to Cal Quantrill to keep the momentum rolling. The First pitch flies at 4:10 p.m. ET.
Who will win Rangers vs Diamondbacks today: Rangers (46%)
For help understanding probabilities, see our odds calculator.
If this was two months ago, it would have been a full fade on Texas Rangers starter Cal Quantrill, but he has completely turned things around. The veteran right-hander owns a 1.69 ERA and 0.75 WHIP over his last five starts while limiting hard-hit balls.
On top of that, the Rangers, who can be very hot or cold, are in the middle of a big hot streak. They own a wRC+ above 115, an OPS above .770 and a .339 wOBA over their last 21 games.
The Arizona Diamondbacks have a 79 wRC+, .116 ISO, and 4.8% barrel rate over their last 12 games. Left-hander Eduardo Rodriguez has been very solid for them this season, but if they are unable to score, how are they going to win?
Take the dog. Do not pay juice.
COVERS INTEL: Justin Foscue, over his last 30 at-bats versus left-handed pitching, owns a .393 BA, .714 SLG, and 1.147 OPS. 
Rangers vs Diamondbacks Over/Under pick: Under 8.5 (53%)
This should be a good old-fashioned pitcher’s duel, as both Quantrill and Rodriguez have been lights out over their last five outings. Quantrill’s numbers are above, but Rodriguez has posted a 1.82 ERA, 1.08 WHIP and allowed just a 2.44% barrel rate during that span.
Plus, with how cold the Diamondbacks’ bats have been, the Rangers will likely be the only team producing runs. Asking for nine runs in this spot feels like a lot.
Rangers vs Diamondbacks home run prediction: Justin Foscue (18%)
Either Justin Foscue or Jake Burger in this spot. As the intel above will show, Foscue has been incredible against southpaws this season. He owns a .614 SLG and .291 ISO while having just a 31.9% ground-ball rate.
Batters-Box has the 27-year-old covering nearly 80% of Rodriguez’s pitch mix. With how well he has been seeing the ball against left-handers, he is one of the best looks in this matchup to go yard. If you need a replacement, take Mr. Burger.
- MLB bets: 492-966, +3.5 units
- Home Run bets: 123-428, +24.5 units
Rangers vs Diamondbacks weather
Weather will be a non-factor as this game is played indoors.
Rangers vs Diamondbacks odds
- Moneyline: Rangers 46% | Diamondbacks 55%
- Run line: Rangers +1.5 (62%) | Diamondbacks -1.5 (38%)
- Over/Under: Over 8.5 (48%) | Under 8.5 (53%)
Rangers vs Diamondbacks trend
The Texas Rangers have covered the Run Line in 8 of their last 13 games (+3.15 Units / 17% ROI).
Find more MLB betting trends for Rangers vs. Diamondbacks.
How to watch Rangers vs Diamondbacks and game info
| Location | Chase Field, Phoenix, AZ |
| Date | Sunday, Sept. 13, 2026 |
| First pitch | 4:10 p.m. ET |
| TV | RSN, DBacks.TV |
| Rangers starting pitcher | Cal Quantrill (8-5, 2.89 ERA) |
| Diamondbacks starting pitcher | Eduardo Rodriguez (15-5, 2.55 ERA) |
Rangers vs Diamondbacks latest injuries
Odds are correct at the time of publishing and are subject to change.
Not intended for use in MA.
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