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MLB · Tue, Jul 28 · 6:40 PM

Diamondbacks at Pirates

O/U 14.5 · RL Diamondbacks -1.5

GARY'S PICK
Pirates Moneyline
MLBvs Diamondbacks· -115

Pirates
Moneyline

-115 · LOST · ARI 8 · PIT 7

Diamondbacks

The pick & result

Published pick
Pirates ML -115
Published odds
-115
Result
Lost
Final score
8-7

Odds are the American price printed with this pick, not a current offer. Wins, losses and pushes remain on the public record; a missing grade is not a win.

The read

PNC Park gets another July game that feels like the playoffs. After Monday night’s walk-off, Pittsburgh can lock up the season tiebreaker. Both teams have the same record, and with the trade deadline just days away, I care more about tonight’s matchup than momentum.

I give Bubba Chandler the edge among the starting pitchers. He has pitched better than his results suggest, his fastball and slider are hard to hit, and he just kept the Yankees scoreless for more than six innings. Arizona’s left-handed hitters are a threat, but Brandon Pfaadt has had real trouble with lefties. Pittsburgh can go after him with Brandon Lowe, Ryan O’Hearn, Jacob Gonzalez, its hitters who bat from either side, and a cleared Esmerlyn Valdez.

I also trust Pittsburgh more late in the game. Mason Montgomery probably needs the night off, but Gregory Soto is available. Arizona has fewer dependable relief options after Jonathan Loáisiga pitched on back-to-back days, and its closer role is less settled. Chandler could be pulled early if he struggles, so I’m not betting heavily, but with the odds close to even, I’m taking the Pirates to win.

The full analysis

PNC Park gets another game with October weight in July, and Pittsburgh can clinch the season tiebreaker after Monday night’s walk-off. With both clubs 55-52 and the deadline three days away, this is less about momentum than which side is better built for tonight’s specific matchup.

I give Bubba Chandler the starting-pitching edge. His 4.01 xERA is better than his 4.47 ERA, his 98.6 mph four-seamer and 90.3 mph slider both miss bats, and he just held the Yankees scoreless for 6 1/3 innings. Arizona’s left-handed bats are the danger, but Brandon Pfaadt presents the more direct weakness: lefties own an .856 OPS against him, and Pittsburgh can attack him with Brandon Lowe, Ryan O’Hearn, Jacob Gonzalez and its switch-hitters ahead of a cleared Esmerlyn Valdez.

The late innings also lean Pittsburgh. Mason Montgomery likely needs a night off, but Gregory Soto remains available; Arizona is thinner in leverage after Jonathan Loáisiga worked on consecutive days, and its closer situation is less secure. Chandler’s occasional short leash keeps this from being a heavy play, but at a near pick’em price I make the home side the right favorite. My bet is Pirates moneyline -115.

The research

The dated measurements the app shows under this card — observations with their sample and source, not predictions.

COOLING OFF

  • Bryan Reynolds: .475 OPS in L15 — draws RHP Brandon Pfaadt

    .475

    Bryan Reynolds has slipped to a .475 OPS over his last 38 plate appearances. He is better than that, but a matchup with Brandon Pfaadt on his weaker split is not an obvious rebound spot.

FIRST INNING

  • NRFI watch: quiet first innings on both sides of ARI @ PIT

    NRFI

    Both clubs have consistently opened games quietly, and the starters’ first-inning work supports that pattern. At plus money, NRFI is the side that interests me.

TEAM RECORD

  • Diamondbacks 6-2 in Brandon Pfaadt's last 8 starts

    6-2

    Arizona is 6-2 in Brandon Pfaadt's last eight starts and has won his last five. That is solid support for the Diamondbacks, especially with Bryan Reynolds entering in poor form.

REGRESSION

  • Esmerlyn Valdez: .290 AVG vs .230 xBA

    .230

    Esmerlyn Valdez's .290 average and .451 wOBA are running well above his expected marks. The power is real enough to respect, but his current results look vulnerable to cooling.

  • Jake Mangum: .301 AVG vs .256 xBA

    .256

    Mangum’s .301 average is being propped up by results that his contact quality does not support. Over 293 plate appearances, the .256 xBA makes this a legitimate regression warning.

CLOSER WATCH

  • Paul Sewald

    24 SV

    Paul Sewald owns the ninth for the Diamondbacks — 24 saves this season (next closest: Jonathan Loaisiga with 1).

All research from this day

About this analysis

Who made it
Gary AI, an AI sports-analysis product operated by Gary A.I. LLC. No human reviewer is claimed unless one is explicitly named.
Published data
Daily picks first stored July 28, 2026 at 12:14 PM ET.
Odds record
The pick receipt shows the price printed in the published ticket. The matchup market and line ladder provide separate market context. Stored sportsbook sources: fanduel, fanatics, betmgm, draftkings, caesars, betrivers.
Accountability
Read the editorial standards, source policy, and corrections process.

Props on this game

3
  • GARY'S PICK
    GABRIEL MORENOH+R+RBI OVER 1.5
    MLBArizona Diamondbacks· -123

    Gabriel Moreno
    H+R+RBI over 1.5

    -123 · CASHED · ACTUAL 4

    Arizona Diamondbacks

    Moreno is 16-for-40 over his last 15 days and has cleared this combination in 11 of his last 15 games. Chandler throws his four-seamer almost half the time, and Moreno owns a .333 average, .569 slugging percentage and .491 expected wOBA against four-seamers this season. Hitting third gives him both RBI opportunities and strong protection behind him.

  • GARY'S PICK
    GERALDO PERDOMOWALKS OVER 0.5
    MLBArizona Diamondbacks· -113

    Geraldo Perdomo
    Walks over 0.5

    -113 · LOST · ACTUAL 0

    Arizona Diamondbacks

    Perdomo has drawn a walk in 10 of his last 15 games, and his recent 16% chase rate and 9% whiff rate show how well he is controlling the zone. Chandler has allowed at least two walks in six of his last eight starts. Batting second should give Perdomo four or five chances to work one at close to even money.

  • THE LONG SHOT
    ENDY RODRIGUEZHR OVER 0.5
    MLBPittsburgh Pirates· +800

    Endy Rodriguez
    HR over 0.5

    +800 · LOST · ACTUAL 0

    Pittsburgh Pirates

    Rodriguez gets the favorable side of Pfaadt’s pronounced platoon split. Left-handed hitters have a .304 average and .856 OPS against Pfaadt with seven home runs in 138 at-bats, while Rodriguez has produced a .313 average, .996 OPS and all five of his homers against right-handed pitching. He has also slugged .719 against four-seam fastballs, a pitch Pfaadt throws frequently without generating many whiffs. Batting seventh and playing at PNC Park lower the volume, but +800 requires only an 11.1% hit rate and gives me enough compensation for those concerns.

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