MLB Predictions

Miami Marlins vs San Diego Padres Predictions

Sunday, September 20, 2026 at 4:10pm EST at Petco Park, San Diego, California

Miami

Marlins

76-79
Moneyline +124
@
San Diego

Padres

86-69
Moneyline -150
50% 50%
Spread Miami Marlins +1.5 San Diego Padres -1.5
Moneyline Miami Marlins +124 San Diego Padres -150
Total Over 8 (-114) Under 8 (-105)

Who wins this game?

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Marlins vs. Padres Prediction: Alcantara Tests San Diego at -138

Analysis updated September 20, 2026 at 6:06 AM CDT

The Padres get a slight nod to win, but the probable pitching matchup leaves little reason to back them at SPF’s price.

Pitching and price

Miami’s Sandy Alcantara brings a 3.84 ERA into his probable start against San Diego’s Walker Buehler, who has a 4.58 ERA. FanDuel Research, FanDuel’s sports analysis site, lists both as probable for Sunday’s game at Petco Park. That ERA comparison favors Miami, though it doesn’t establish that the Marlins are worth backing at SPF’s +114 moneyline against the Padres at -138.

The same report lists San Diego at 86-69 and Miami at 76-79, with the Padres winning the first two games of the series 8-2 and 7-6. The stronger season record gives San Diego a slight nod as the likely winner, but two recent wins don’t establish value at this price.

Pass on the wagers. SPF lists Miami +1.5 and San Diego -1.5 without run-line prices, so the cost of that extra cushion can’t be assessed. The total is 8, with over -105 and under -115; the probable starters’ ERAs alone aren’t enough to support either side without confirmed lineups and bullpen availability.

Pick San Diego Padres
Confidence low
Betting lean Pass
Odds and availability can change. Confirm current markets before placing a wager.
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