MLB · total · Published system
Ace vs ace (both ERA 2.75 or lower): under
Ace vs ace (both ERA 2.75 or lower): under. Machine rule: {"seasonType": "regular", "side": "home", "pitcher.era": {"max": 2.75}, "pitcher.seasonStarts": {"min": 5}, "opponent.pitcher.era": {"max": 2.75}, "opponent.pitcher.seasonStarts": {"min": 5}} Bet: bet the under.
90-76-13 since 2021, ROI after the vig +3.2%.
Published system — made money 2021–26 after the vig. Past results, not a guarantee.
- All bets, 2021 to 2026
- 90-76-13 (n=166), won 54.2% (95% range 46.6% to 61.6%); break-even 52.4%; ROI after the vig +3.2%
- Earlier seasons
- 2021 to 2023: 40-35-5, +1.1%
- Later seasons
- 2024 to 2026: 50-41-8, +4.9%
- 2021
- 19-13-3 (n=32), ROI +12.3%
- 2022
- 15-17-2 (n=32), ROI -10.7%
- 2023
- 6-5 (n=11), ROI +3.2%
- 2024
- 10-9-2 (n=19), ROI +1.2%
- 2025
- 16-20-3 (n=36), ROI -14.9%
- 2026
- 24-12-3 (n=36), ROI +26.5%
How this is graded
This system was published elsewhere; we graded its rule on every game it fit in 2021 to 2026 at our closing consensus prices. ROI is profit per unit staked after the vig. We list a system only if it made money over the whole sample and in both the earlier and later seasons, on 50 or more decided bets. Rates exclude pushes; n counts decided bets.
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For information only. Past results don't predict future ones. 21+. Gambling problem? Call 1-800-GAMBLER. Trend data from the MoneyLine API.