MLB Over/Under System Records
Every tracked MLB over/under betting system. Verified W-L, ROI, and CLV across 3344 graded picks.
TRACKED SYSTEMS
24
COMBINED RECORD
2289-1055
HIT RATE
68.45%
AVG ROI
+30.61%
See Also in MLB
MLB Over/Under Team Records
Browse every MLB team's over/under record, ranked by cover rate.
Tampa Bay Rays
#111-3 · 78.6%
Houston Astros
#213-5 · 72.2%
Miami Marlins
#312-5 · 70.6%
Washington Nationals
#412-5 · 70.6%
Arizona Diamondbacks
#511-7 · 61.1%
Los Angeles Angels
#611-7 · 61.1%
Chicago Cubs
#79-6 · 60.0%
Milwaukee Brewers
#89-6 · 60.0%
Chicago White Sox
#910-7 · 58.8%
Pittsburgh Pirates
#1010-7 · 58.8%
St. Louis Cardinals
#1110-7 · 58.8%
Cincinnati Reds
#129-7 · 56.3%
Philadelphia Phillies
#139-7 · 56.3%
Toronto Blue Jays
#149-7 · 56.3%
Baltimore Orioles
#1510-8 · 55.6%
How We Track MLB Over/Under Systems
Each system in this cluster is an ML-discovered betting rule tested against historical MLB games. Systems earn a spot when they show a statistically meaningful edge over the closing line. The combined 2289-1055 record across 24 systems represents a profitable long-term result — every pick is graded against the closing line, so CLV and ROI reflect bet-able reality, not back-tested fantasy.
Top MLB Over/Under Systems by ROI
Frequently Asked Questions
How many MLB Over/Under betting systems are tracked?▾
Trendline currently tracks 24 MLB Over/Under systems with a combined 2289-1055 record (68.45% hit rate) across 3344 graded picks. Each system is an ML-discovered rule tested against historical games and live-tracked going forward.
Which MLB Over/Under system has the highest ROI?▾
"Overs with Rest and High Totals" currently leads all tracked MLB Over/Under systems at +57.92% ROI on a 158-33 record. ROI reflects performance against the closing line at $100 flat stakes — not a back-tested figure.
How do MLB Over/Under systems get graded against the closing line?▾
Every qualifying pick is settled against the sharpest closing price. Closing line value (CLV) measures whether the pick's original number beat the market's final number. Consistent positive CLV over 50+ picks is the single strongest indicator of long-term profitability.
What sample size is meaningful for a MLB Over/Under betting system?▾
15-20 picks is the floor for statistical signal, and 50+ picks is where a real edge typically separates from variance. Short-sample systems can look exceptional or terrible purely by luck — sample size matters more than any one headline number.