The Miami Marlins visit the Arizona Diamondbacks on Monday, September 14, 2026. Miami holds a 74-76 record, while Arizona stands at 79-71. These records show the Diamondbacks have had a better season, which is reflected in the betting odds.
Arizona is favored at home with a moneyline of -137, meaning you would need to bet $137 to win $100 on the Diamondbacks outright. Miami’s moneyline is +113, so a $100 bet on the Marlins would yield $113 if they win. The spread is set at 1.5 runs, with Miami as the underdog at +1.5 (-188) and Arizona favored at -1.5 (+155). The spread odds suggest that betting on Miami to lose by less than two runs or win outright is priced higher than backing Arizona to win by two or more runs.
The total runs line is 8.0, with the over slightly less favored at -108 compared to the under at -112. This indicates a close call on scoring, with bookmakers expecting a moderately low-scoring game.
Given the Diamondbacks’ better record and home advantage, they look like the safer pick. However, the Marlins’ spread odds offer value if you expect a close game. The total suggests a pitching duel or solid defense on both sides.
In summary, Arizona is the favorite to win, but the Marlins could keep it close. Betting the spread on Miami or the under on total runs might be worth considering.