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MLB · Wed, Apr 8 · 4:10 PM

Diamondbacks at Mets

O/U 7.5 · RL Mets -1.5 · Citi Field

GARY'S PICK
Mets Moneyline
MLBvs Diamondbacks· -138

Mets
Moneyline

-138 · LOST · ARI 7 · NYM 2

Diamondbacks

The pick & result

Published pick
Mets ML -138
Published odds
-138
Result
Lost
Final score
7-2

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

A crisp, sunny afternoon at Citi Field sets the stage for this series finale, but while the skies are clear, the 10-mph wind blowing out to left field creates a treacherous environment for a pitcher struggling to keep the ball in the yard. Ryne Nelson takes the mound for Arizona, and quite frankly, the underlying metrics are terrifying for Diamondbacks fans. While his 5.79 ERA is already problematic, his 11.25 xERA is the highest among active starters with multiple appearances this season. Nelson has surrendered four home runs in just over nine innings of work, and in these conditions, he is a regression disaster waiting to happen against a Mets lineup featuring power bats like Mark Vientos and Francisco Alvarez.

On the other side, David Peterson hasn't exactly been lights-out, but he is significantly more reliable than his 1.97 WHIP suggests. His 4.32 xERA indicates he has been the victim of some bad luck regarding ball placement, but crucially, he hasn't allowed a single home run yet in 2026. He faces a Diamondbacks lineup that is currently in a tailspin, hitting a collective .213 as a team. Arizona just lost two of their most productive veteran bats, Carlos Santana and Jordan Lawlar, to the injured list yesterday. Without that middle-of-the-order presence, this offense lacks the consistent firepower to capitalize on the base traffic Peterson traditionally allows.

The discrepancy in late-inning relief is the final nail here. The Mets' bullpen has been the gold standard early this season with a 2.54 ERA, and they have Edwin Díaz locked and loaded after two days of rest. Arizona remains winless on the road this year (0-5) and is being forced to lean on depth players like Jose Fernandez and Jorge Barrosa to fill significant gaps in the batting order. Between the massive gap in expected pitching performance and the Mets' current four-game winning streak, the price on the home favorite is the right play. New York has all the momentum, the superior bullpen, and a starter who is much closer to his true form than the volatility we are seeing from Nelson.

Injuries noted

Mets: [NEW] Chris Devenski (Relief Pitcher) — Head (Not Specified): The Pirates reassigned Devenski (head) to minor-league camp Sunday. (Apr 6 — 1d ago) [NEW] Juan Soto (Left Fielder) — Calf (Right): The Mets placed Soto (calf) on the 10-day injured list Monday. (Apr 6 — 2d ago) [KNOWN] Justin Hagenman (Relief Pitcher) — Ribs: The Mets placed Hagenman on the 60-day injured list Saturday due to a rib fracture. (Mar 14 — 25d ago) [KNOWN] Brandon Waddell (Relief Pitcher) — Shoulder (Left): The Mets outrighted Waddell to Triple-A Syracuse on Friday, Anthony DiComo of MLB.com reports. (Mar 8 — 31d ago) [KNOWN] Dedniel Nunez (Relief Pitcher) — Elbow (Right): The Mets transferred Nunez (elbow) from the 15-day injured list to the 60-day IL on Monday. (Feb 15 — 51d ago) [KNOWN] Tylor Megill (Starting Pitcher) — Elbow (Right): The Mets and Megill (elbow) avoided arbitration by agreeing to a one-year, $2.5 million contract Thursday, Ari Alexander of 7 News Boston reports. (Feb 12 — 54d ago) [KNOWN] Reed Garrett (Relief Pitcher) — Elbow (Right): The Mets placed Garrett (elbow) on the 60-day injured list Tuesday. (Feb 10 — 57d ago) [KNOWN] Alex Young (Relief Pitcher) — Elbow (Left): Young revealed in a post on his personal Instagram account that he underwent season-ending surgery on his left elbow March 31. (Dec 9 — 120d ago) Diamondbacks: [NEW] Jordan Lawlar (Shortstop) — Wrist (Right): The Diamondbacks transferred Lawlar (wrist) from the 10-day injured list to the 60-day IL on Tuesday. (Apr 7 — 1d ago) [NEW] Carlos Santana (First Baseman) — Groin (Right): The Diamondbacks placed Santana on the 10-day injured list Tuesday with a right adductor strain. (Apr 7 — 1d ago) [NEW] Merrill Kelly (Starting Pitcher) — Back (Left): Diamondbacks manager Torey Lovullo announced Sunday that Kelly (back) will make one more rehab start before joining the big-league rotation, Nick Piecoro of The Arizona Republic reports. (Apr 5 — 2d ago) [KNOWN] Pavin Smith (Left Fielder) — Elbow (Left): Smith is not in the lineup for Monday's contest versus the Tigers. (Mar 30 — 8d ago) [KNOWN] Nabil Crismatt (Relief Pitcher) — Elbow (Right): Crismatt will undergo surgery to repair a torn UCL in his right elbow, Evan Grant of The Dallas Morning News reports. (Feb 13 — 54d ago) [KNOWN] Andrew Saalfrank (Relief Pitcher) — Shoulder (Left): Saalfrank (shoulder) said Wednesday that he expects to be sidelined 10-16 months, Arizona Sports reports. (Feb 11 — 56d ago) [KNOWN] Tommy Henry (Starting Pitcher) — Elbow (Left): The Diamondbacks re-signed Henry (elbow) to a minor-league contract Monday. (Dec 3 — 125d ago) [KNOWN] Jeff Brigham (Relief Pitcher) — Undisclosed (Not Specified): The Cubs signed Brigham to a minor-league contract Thursday that includes an invitation to spring training, Bruce Levine of 670TheScore.com reports. (Mar 30 — 8d ago)

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 April 8, 2026 at 11:13 AM 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, caesars, fanatics, draftkings, betmgm, betrivers.
Accountability
Read the editorial standards, source policy, and corrections process.

Props on this game

2
  • GARY'S PICK
    LUIS ROBERT JR.H+R+RBI OVER 1.5
    MLBMets· +115

    Luis Robert Jr.
    H+R+RBI over 1.5

    +115 · CASHED · ACTUAL 2

    Mets

    Luis Robert Jr. enters this matchup as the hottest hitter in the Mets' lineup, slashing .313 over his last 10 games with multi-hit performances in three of his last five. The matchup against Ryne Nelson is the primary catalyst for this pick.

    While Nelson's 5.79 ERA is poor, his expected metrics (11.25 xERA and .480 xwOBA allowed) are essentially bottom-of-the-league. Nelson has a massive home run problem, surrendering 7 long balls in just 20.5 innings this season. Robert Jr., batting cleanup, will have ample opportunities with runners on base (given Nelson's high WHIP) and the 10 mph wind blowing out to left field significantly favors his power profile.

    He has cleared this 1.5 HRR line in four of his last six starts.

  • GARY'S PICK
    DAVID PETERSONK'S UNDER 4.5
    MLBMets· -157

    David Peterson
    K'S under 4.5

    -157 · LOST · ACTUAL 6

    Mets

    David Peterson is fundamentally a pitch-to-contact southpaw who lacks the efficiency required to consistently pitch deep into games. This season, his 1.97 WHIP has forced him into high-leverage counts early, resulting in an average of fewer than five innings per start.

    In his last five outings, Peterson has recorded strikeout totals of 5, 3, 4, 2, and 3—staying under this 4.5 line in 80% of those games. He faces a Diamondbacks lineup that is built on contact and discipline, led by veterans like Ketel Marte and Nolan Arenado who rarely strike out at high rates.

    Given Peterson's inability to limit baserunners, he is likely to be pulled before he can accumulate five strikeouts, even if he manages to miss a few bats early.

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