Free Pick: Mets vs. Diamondbacks Odds
Looking for New York Mets vs. Arizona Diamondbacks Free MLB predictions? MLB betting sees the Mets taking on the Diamondbacks on 5/9 at Chase Field, in Arizona. This free MLB baseball pick is based on matchup analysis and documented handicapping data tracked by CappersPicks since 2004, with a focus on identifying the strongest betting angle for this Mets Diamondbacks matchup..
2026 MLB Handicapping – New York Mets vs Arizona Diamondbacks
(14-23) New York Mets vs. Arizona Diamondbacks (17-19)
Date: May 09, 2026
Time: 7:15 PM ET
Venue: Chase Field in Arizona, AZ
Projected Starting Pitchers: Clay Holmes vs. Merrill Kelly
MLB Moneyline Odds: Mets -117 | Diamondbacks -103 (Bet Now!)
Today’s MLB Run Line Betting Odds: Mets -1.5 | Diamondbacks +1.5
MLB Baseball Gambling Total: O/U: 8.5
Here’s why I’m backing an UNDER bet below in my Mets Diamondbacks free pick & gambling prediction for this matchup.
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Mets vs. Diamondbacks Gameday
The New York Mets head into Chase Field tonight looking to improve on a difficult 14-23 start to the season. Arizona also enters searching for momentum with a 17-19 record and recent struggles across the last few series.
Both teams need momentum badly, and neither lineup has found consistency lately.
Carlos Mendoza’s Mets have played uneven baseball recently with a 5-5 record over the last ten games.
Arizona has faced even more problems during that same stretch, going 3-7 across the last ten matchups under Torey Lovullo.
The Diamondbacks have still held a slight edge in recent meetings against New York by outscoring the Mets by an average margin of two runs over the last five games. The Mets responded in the latest matchup on May 8th with a 3-1 victory.
That recent win could still provide New York with a confidence boost entering tonight’s game.
New York Mets vs. Arizona Diamondbacks Odds & Last 5
The betting odds point toward a competitive matchup with the Mets listed as slight favorites at -120 on the moneyline. Arizona enters close behind at -101.
The runline places New York at -1.5 with +141 odds and Arizona at +1.5 with -170 odds.
The total for tonight’s game is set at 8.5 runs, suggesting expectations for moderate scoring.
The Mets have alternated wins and losses recently while continuing to search for consistency. New York picked up a 3-1 victory over Arizona in the latest meeting behind a strong outing from Nolan McLean.
The Diamondbacks continue entering games with less momentum after dropping two straight contests.
Arizona also recently lost a close 4-2 game against Pittsburgh while struggling to finish late opportunities. Both teams now enter tonight trying to improve their overall position in the standings.
Diamondbacks Stats
The Arizona Diamondbacks continue producing respectable offensive numbers in several categories this season. Their .242 batting average ranks 10th in baseball while the .402 slugging percentage sits 8th overall.
The on-base percentage has still remained one of the weaker areas offensively.
Arizona carries a .300 on-base percentage that ranks 19th in the league.
The pitching staff has struggled far more consistently throughout the season. The Diamondbacks own a 4.87 ERA that ranks 29th in baseball while also sitting 24th in strikeouts with 266.
Those numbers continue highlighting several problems on the mound.
Ildemaro Vargas remains one of the most productive hitters on the roster with a .353 batting average this season. Nolan Arenado has also added six home runs to the offense.
Ketel Marte continues contributing heavily as well with 19 runs scored during the year.
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Mets Stats
The New York Mets have delivered uneven offensive production throughout the season. Their .229 batting average ranks 17th in baseball while the .292 on-base percentage places 20th overall.
The power production has also remained limited for much of the season.
New York enters with a .351 slugging percentage that ranks 28th in baseball.
The Mets pitching staff has still delivered more reliable performances overall. New York carries a 4.01 ERA that ranks 14th while limiting opponents to a .234 batting average against, ranking 8th overall.
The staff has also surrendered only 33 home runs this season, ranking 5th in baseball.
Mark Vientos has remained one of the top contributors offensively with a .240 batting average and a team-leading 5 home runs. Francisco Alvarez has also produced with a .243 batting average and 4 home runs.
Those hitters continue giving New York some needed production throughout the lineup.
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Mets vs. Diamondbacks Pitching Matchup
Clay Holmes enters for the New York Mets carrying one of the stronger starts among pitchers this season. He owns a 4-2 record alongside an impressive 1.69 ERA.
Holmes has also recorded 31 strikeouts so far this season.
His 0.98 WHIP continues showing an ability to limit baserunners effectively. Holmes has remained one of the biggest reasons New York stays competitive despite offensive inconsistency.
Fans will now watch to see if he can continue maintaining this level of production.
Merrill Kelly takes the mound for Arizona while trying to improve on a difficult start to the year. He enters with a 1-3 record and a 9.95 ERA.
Kelly has also produced 14 strikeouts despite struggling heavily with run prevention. His 2.32 WHIP continues reflecting major issues with command and baserunners.
Arizona will need stronger control and more stability from Kelly moving forward if the Diamondbacks hope to reverse recent struggles. Tonight’s matchup becomes another major opportunity for him to regain momentum.
New York Mets vs. Arizona Diamondbacks bottom line: New York enters with the stronger pitching edge, but Arizona still has enough offensive pop to stay dangerous at home.
New York Mets vs. Arizona Diamondbacks Baseball Betting Trends
- The Diamondbacks are 1-4 straight-up in their last 5 games.
- The Diamondbacks have hit the under in 3 of their last 5 games.
- The Mets are 4-1 straight-up in their last 5 games.
- Also, the Mets have hit the over in 3 of their last 5 games.
- The Diamondbacks are 2-3 against the run line in their last 5 games.
- Additionally, the Mets are 3-2 against the run line in their last 5 games.
Mets Diamondbacks Free Pick: Under 8.5
Here is my Mets Diamondbacks free pick: This matchup feels lower scoring than the number suggests.
The Mets have been playing good baseball lately, but Arizona continues dragging games into tighter, lower-scoring spots. That trend has shown up repeatedly.
Recent meetings between these teams have also leaned under, including the latest matchup finishing 3-1. So why expect an offensive breakout now?
Plus, Arizona’s lack of power hitting makes it harder to trust them in a higher-total game environment. Quick thought, home runs change everything.
Runs could be limited here.
This shapes up as another controlled, lower-scoring game.
The pitching matchup and recent scoring patterns both support the lower side tonight.
On Saturday the Under 8.5 is the play.
Today’s MLB Free Pick
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MLB Betting Tweet Of The Day
He wasted no time. pic.twitter.com/JWlLVbmB4c
— Arizona Diamondbacks (@Dbacks) May 9, 2026
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