MLB Predictions

Miami Marlins vs Arizona Diamondbacks Predictions

Wednesday, September 16, 2026 at 9:40pm EST at Chase Field, Phoenix, Arizona

Miami

Marlins

Moneyline +111
@
Arizona

Diamondbacks

Moneyline -133
50% 50%
Spread Miami Marlins +1.5 Arizona Diamondbacks -1.5
Moneyline Miami Marlins +111 Arizona Diamondbacks -133
Total Over 9 (-107) Under 9 (-112)

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Marlins vs. Diamondbacks: Miami's Bullpen Losses Shape the -133 Price

Analysis updated September 16, 2026 at 5:17 AM CDT

Miami's bullpen absences give Arizona a late-inning angle. They don't establish that the Diamondbacks are worth backing at SPF's -133.

Miami turns to a closer committee

Miami will finish the season without relievers Pete Fairbanks and Anthony Bender, MLB.com reports. Those losses weaken the Marlins' late-inning options and give Arizona a concrete advantage to consider at SPF's -133 moneyline, with Miami priced at +111.

Fairbanks is out with right median nerve irritation, while Bender will undergo surgery. Manager Clayton McCullough said Miami will use a committee in save situations; MLB.com identifies Calvin Faucher and Michael Petersen as apparent high-leverage options. That leaves Miami distributing save chances without two of its established options.

Betting outlook

Arizona Diamondbacks / MLB.com, the club's official site, lists Merrill Kelly as Arizona's pitcher for September 16. Miami's starter and both lineups remain unconfirmed here, so the bullpen news alone doesn't establish Arizona's overall pitching or hitting advantage.

The Diamondbacks are the market favorite, but -133 requires a win rate of about 57.1% to break even. There's no supported estimate that clears that threshold, and missing information doesn't make Miami a value bet. Pass on the moneyline.

Confidence low
Betting lean Pass
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