Athletics vs Arizona Diamondbacks Picks, Prediction, Odds, and Line Movement for Tuesday July 21 2026
The Athletics vs Arizona Diamondbacks prediction for Tuesday's matchup at Chase Field looks at an Athletics team that took Monday's opener 5-2 and now sends Jack Perkins to the mound against Arizona's Kohl Drake, who is scheduled to make his MLB debut. For more coverage across the league, check out our MLB picks for additional angles on tonight's slate.
TLDR: Quick Picks and Prediction
- Side Pick: Athletics +1.5 (-186)
- Total Pick: Over 9.5 runs
- Final Score Prediction: Diamondbacks 6, Athletics 5
Odds and Line Movement
Current Odds
| Market | Athletics | Arizona Diamondbacks |
|---|---|---|
| Moneyline | +114 | -137 |
| Run Line | +1.5 (-186) | -1.5 (+153) |
| Total | 9.5 runs | |
Line Movement - Moneyline
| Date | Time | Athletics | Arizona | Public ($, #) |
|---|---|---|---|---|
| 07/21 | 08:36:26AM | +114 | -137 | ARI 85%, 84% |
| 07/21 | 08:36:26AM | +114 | -137 | ARI 85%, 84% |
| 07/21 | 07:27:53AM | +118 | -142 | |
| 07/21 | 05:16:08AM | +114 | -137 | |
| 07/21 | 04:32:13AM | +116 | -139 | |
| 07/21 | 04:31:05AM | +113 | -136 | |
| 07/21 | 04:14:54AM | +111 | -133 |
Line Movement - Total
| Date | Time | Over | Under | Public ($, #) |
|---|---|---|---|---|
| 07/21 | 09:26:56AM | 9.5 (-115) | 9.5 (-105) | U90%, O56% |
| 07/21 | 09:10:48AM | 9.5 (-110) | 9.5 (-110) | U90%, O50% |
| 07/21 | 08:36:26AM | 9.5 (-115) | 9.5 (-105) | U90%, U67% |
| 07/21 | 07:27:53AM | 9.5 (-117) | 9.5 (-103) | U93% |
| 07/21 | 06:41:58AM | 10 (-103) | 10 (-117) | U89% |
| 07/21 | 05:16:08AM | 10 (-102) | 10 (-118) | |
| 07/21 | 05:14:46AM | 10 (-103) | 10 (-117) | |
| 07/21 | 05:04:26AM | 10 (-102) | 10 (-118) | |
| 07/21 | 04:32:13AM | 10 (-103) | 10 (-117) | |
| 07/21 | 04:31:05AM | 9.5 (-115) | 9.5 (-104) | |
| 07/21 | 04:14:54AM | 9.5 (-116) | 9.5 (-104) |
Athletics vs Diamondbacks Key Matchups and Game Preview
Athletics Starting Pitching
Jack Perkins starts for the Athletics with a 2-5 record, 6.87 ERA and 1.44 WHIP across 57.2 innings. The right-hander has recorded an impressive 72 strikeouts, but he has also surrendered 60 hits, 23 walks and 10 home runs. His ability to miss bats gives him upside, although his overall run prevention makes him difficult to trust against an Arizona lineup with several dangerous hitters.
Diamondbacks Starting Pitching
Arizona will counter with left-hander Kohl Drake, who is scheduled to make his MLB debut. With no major-league track record available, Drake introduces considerable uncertainty to the matchup, and the Athletics may attempt to force him into deep counts early.
Athletics Offense
The Athletics have been the better offensive team statistically, batting .247 with 448 runs, 124 home runs and a .406 slugging percentage. Shea Langeliers leads the Athletics with 22 home runs, while Nick Kurtz is batting .266 with a .405 on-base percentage, 20 homers and a team-high 66 RBIs. However, Kurtz is on the injured list, removing one of the Athletics' best combinations of power and plate discipline.
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Arizona Offense
Arizona is batting .237 with 435 runs, 94 homers and a .387 slugging percentage. Ketel Marte leads Arizona with a .258 average, 18 home runs and 58 RBIs, while carrying a .461 slugging percentage.
Athletics Injury Situation
The Athletics also list Colby Thomas and Joshua Kuroda-Grauer as day-to-day, while Zack Gelof remains sidelined, in addition to Nick Kurtz being on the injured list.
Arizona Injury Situation
Arizona's Corbin Carroll is day-to-day, and his absence would reduce the club's speed, power and overall offensive ceiling. The Diamondbacks are also without starting pitchers Blake Walston and Zac Gallen, along with outfielders Lourdes Gurriel Jr. and Jordan Lawlar.
ATH vs ARI Betting Trends
The Athletics won Monday's opener 5-2, improving to 43-57 and moving 7.5 games behind Seattle in the American League West. Arizona dropped to 51-49 and remains 11.5 games behind Los Angeles in the National League West. Public betting money has come in heavily on the Diamondbacks, with one snapshot showing 85 percent of bets and 84 percent of money on Arizona, while the total has drawn strong under support at 90 percent on multiple recent updates.
ATH and ARI Injury Report and Things To Know
- Athletics slugger Nick Kurtz is on the injured list.
- Athletics outfielders Colby Thomas and Joshua Kuroda-Grauer are day-to-day.
- Athletics infielder Zack Gelof remains sidelined.
- Diamondbacks star Corbin Carroll is day-to-day.
- Diamondbacks starters Blake Walston and Zac Gallen are unavailable.
- Diamondbacks outfielders Lourdes Gurriel Jr. and Jordan Lawlar are also out.
- Diamondbacks starter Kohl Drake is set to make his MLB debut.
- The Athletics won Monday's opener 5-2.
Athletics vs Diamondbacks Side and Over/Under Picks
Athletics Side Pick
Arizona owns the better pitching staff overall, but backing a debuting starter at this price carries risk. The preferred pick is the Athletics +1.5 on the run line at -186.
Arizona Total Angle
Perkins' high ERA and both clubs' injury-related pitching concerns make the total more attractive, with the over 9.5 runs standing out as the preferred total play for this game.
Final Score Prediction
- Diamondbacks: 6 runs
- Athletics: 5 runs
This projection lines up with the preferred side of Athletics +1.5 and the over 9.5 total.
How to Wager On Athletics vs Diamondbacks
For this Athletics vs Diamondbacks matchup, the clearest paths are the Athletics +1.5 run line and the over 9.5 total, with the uncertainty of a debuting starter and both pitching staffs' injury concerns supporting these plays. Bettors who want additional tools before placing a wager on this game can also explore our AI picks resource, along with our Dimers review and Oddible review for more ways to approach tonight's slate.
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