Arizona Diamondbacks vs Pittsburgh Pirates Picks, Prediction, Odds, and Line Movement for Tuesday July 28 2026
Tuesday night's MLB picks slate features the Arizona Diamondbacks and Pittsburgh Pirates squaring off in game two of their three-game series at PNC Park, with first pitch set for 6:40 p.m. ET. Both clubs sit at 55-52 on the season, but Pittsburgh took the opener 3-2 in 10 innings and has won back-to-back games while Arizona has dropped three straight. With Pittsburgh sitting as a slight favorite and the total set at nine runs, this game offers value on both sides of the ledger heading into first pitch.
TLDR: Quick Picks and Prediction
- Moneyline/Run Line Pick: Pittsburgh Pirates (-117)
- Total Pick: Over 9 runs
- Projected Final Score: Pirates 6, Diamondbacks 4
Odds and Line Movement
The current market has Pittsburgh favored at -117 with Arizona available at -103, while the total sits at nine runs. Below is a breakdown of how the numbers have moved since Sunday, along with public betting percentages tracked throughout the betting window.
Current Odds
| Date | Time | Arizona | Pittsburgh | Public ($, #) |
|---|---|---|---|---|
| 07/28 | 07:52:09AM | -103 | -117 | ARI 60%, 56% |
Line Movement - Moneyline
| Date | Time | Arizona | Pittsburgh | Public ($, #) |
|---|---|---|---|---|
| 07/28 | 07:52:09AM | -103 | -117 | ARI 60%, 56% |
| 07/28 | 07:52:09AM | -103 | -117 | ARI 60%, 56% |
| 07/28 | 06:59:50AM | -105 | -115 | PIT 58%, 44% |
| 07/28 | 04:14:46AM | +100 | -120 | PIT 58%, 47% |
| 07/28 | 02:10:14AM | +100 | -120 | PIT 62%, 49% |
| 07/28 | 02:10:14AM | +100 | -120 | PIT 62%, 44% |
| 07/28 | 00:51:03AM | +100 | -120 | ARI 79%, 56% |
| 07/27 | 09:53:38PM | -103 | -117 | ARI 80%, 60% |
| 07/27 | 09:53:38PM | -103 | -117 | ARI 87%, 60% |
| 07/27 | 08:57:40PM | -103 | -114 | ARI 92%, 60% |
| 07/27 | 08:11:39PM | -105 | -115 | PIT 63%, 67% |
| 07/27 | 03:59:36PM | -103 | -117 | PIT 92%, 87% |
| 07/27 | 03:59:36PM | -103 | -117 | PIT 91%, 93% |
| 07/27 | 02:09:23AM | -105 | -115 |
Line Movement - Total
| Date | Time | Over | Under | Public ($, #) |
|---|---|---|---|---|
| 07/28 | 07:52:09AM | 9o-112 | 9u-108 | O87%, O60% |
| 07/27 | 03:59:36PM | 9o-111 | 9u-109 | O88%, O87% |
| 07/27 | 02:09:23AM | 9o-108 | 9u-112 |
Diamondbacks vs Pirates Key Matchups and Game Preview
Diamondbacks Pitching Rebound
Brandon Pfaadt takes the mound for Arizona carrying a 5-1 record, 4.43 ERA and 1.32 WHIP across 65 innings this season. Those season-long numbers understate his recent form, as Pfaadt has gone 5-0 with a 2.33 ERA over his last 27 innings since returning from Triple-A Reno on June 30. He also worked six strong innings in his latest start against St. Louis, showing he can settle in after early trouble.
Pirates Lineup Depth
Bubba Chandler starts for Pittsburgh with a 3-8 record, 4.47 ERA and 1.39 WHIP through 100.2 innings this year. Chandler has issued 56 walks on the season, which creates risk against an Arizona lineup featuring Ketel Marte, who leads the club with 19 home runs and 61 RBIs, and Ildemaro Vargas, who is batting .272 with a .317 on-base percentage. Chandler is coming off an encouraging outing against the Yankees in which he allowed just two hits while striking out five over 6.1 innings.
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Arizona's Injury Absences
Arizona remains without Lourdes Gurriel Jr. and Jordan Lawlar, which weakens the club's outfield depth, while Michael Soroka and Drey Jameson remain unavailable on the pitching side.
Pittsburgh's Bullpen Question
Pittsburgh could also be missing Esmerlyn Valdez after he departed Monday's game with a sore wrist, while Spencer Horwitz and Rafael Flores Jr. remain sidelined for the Pirates.
Diamondbacks Bats to Watch
Arizona is hitting just .241 as a team with 481 runs and 103 home runs, though the Diamondbacks have managed a respectable .313 on-base percentage. Ketel Marte and Ildemaro Vargas remain the two names carrying the offense into this series.
Pirates Series Momentum
Pittsburgh has been the stronger offensive club overall, batting .260 with 556 runs, 135 home runs, a .337 on-base percentage and a .421 slugging percentage. Brandon Lowe has contributed 21 home runs and 67 RBIs, Ryan O'Hearn leads the team with 68 RBIs, and Nick Gonzales is batting .315.
Betting Trends: ARI and PIT
Public betting money has shifted several times over the last 24 hours. Early Sunday, the market and public backing sat with Pittsburgh, with 92% of money and 87% of bets on the Pirates line at 03:59:36PM on 07/27. That shifted overnight, with Arizona drawing 92% of tickets by 08:57:40PM on 07/27, before the number swung back toward Pittsburgh into Monday morning. By Tuesday's most recent update, public support sits at 60% of money and 56% of bets on Arizona, even as the line itself remains priced with Pittsburgh as the favorite at -117. On the total, the public has consistently leaned Over, with 87% of money and 60% of bets on the Over as of the most recent 07/28 update, and 88% of money alongside 87% of bets on the Over as of 07/27's 03:59:36PM line.
Key Injuries and Things To Know: ARI and PIT
- Arizona is without Lourdes Gurriel Jr. and Jordan Lawlar, thinning the outfield.
- Michael Soroka and Drey Jameson remain unavailable for Arizona's pitching staff.
- Pittsburgh may be without Esmerlyn Valdez after he left Monday's game with a sore wrist.
- Spencer Horwitz and Rafael Flores Jr. remain sidelined for Pittsburgh.
Diamondbacks vs Pirates Side and Over/Under Picks
Pfaadt's recent stretch makes Arizona tempting at nearly even money, but Pittsburgh's deeper and more productive lineup gives the home side a better chance to manufacture runs against him and the Diamondbacks bullpen. Chandler's control issues could also open scoring chances for Arizona, making the Over appealing even with both starters coming off quality outings.
- Side Pick: Pittsburgh Pirates (-117)
- Total Pick: Over 9
Final Score Prediction
- Pittsburgh Pirates 6, Arizona Diamondbacks 4
How to Wager On Diamondbacks vs Pirates
Bettors looking to shop this line have a few different avenues to compare pricing and find added value beyond the current market on Pittsburgh and the Over. For those who prefer a data-driven approach, checking out AI picks can help cross-reference model-based projections against the current Pirates and Diamondbacks numbers. Bettors can also explore the Dimers review for an additional projection angle on this matchup, or take a look at the Oddible review for another resource to weigh against the run line and total before placing a wager on Diamondbacks vs Pirates.
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