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ATS

MLB ATS System Records

Last updated: April 14, 2026

Every tracked MLB ats betting system. Verified W-L, ROI, and CLV across 26839 graded picks.

TRACKED SYSTEMS

53

COMBINED RECORD

16272-10567

HIT RATE

60.63%

AVG ROI

+20.46%

Trendline Labs tracks 53 MLB ats betting systems with a combined 16272-10567 record (60.63% hit rate) across 26839 graded picks.

See Also in MLB

How We Track MLB ATS 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 16272-10567 record across 53 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 ATS Systems by ROI

SystemRecordHit RateROI
Underdogs in Mid-Total H2H Games98-2877.78%+48.48%
Dogs with Recent Fielding Errors215-7873.38%+40.09%
Dogs with Shaky Defense215-7873.38%+40.09%
Underdogs with Volatile HR Offense218-8272.67%+38.73%
Underdogs with Volatile Power218-8272.67%+38.73%
Underdogs with Volatile Power218-8272.67%+38.73%
Run Line Dogs with Low PA471-20469.78%+33.21%
Run Line Dogs with Low Volume471-20469.78%+33.21%
Underdog with Variable Power365-16069.52%+32.73%
Away Favorites with Volatile Pitching306-14268.30%+30.40%
Favorites with Efficient Baserunning55-2667.90%+29.63%
Favorites with Efficient Baserunning55-2667.90%+29.63%
Favorites with Efficient Offense55-2667.90%+29.63%
Favorites with Efficient Scoring55-2667.90%+29.63%
Away Dogs with Modest Odds1030-48867.85%+29.54%
Away Dogs with Near-Even Odds1030-48867.85%+29.54%
Underdogs with Elite K/BB Control592-28967.20%+28.28%
Home Favorites with Deep Starters55-2767.07%+28.05%
Undervalued Defenders After Blowouts85-4266.93%+27.77%
Favorites with Efficient Offense161-8565.45%+24.94%
Underdogs in Low-Scoring H2H112-6164.74%+23.59%
Favorites with Moderate Lines55-3163.95%+22.09%
Away Dogs with Volatile Power646-36663.83%+21.86%
Heavy Favorites with Pitch Discipline205-11763.66%+21.54%
Favorites with Weak Plate Discipline153-8963.22%+20.70%
Favorites with Low K/BB Ratios208-12362.84%+19.97%
Favorites with Weak K/BB Control208-12362.84%+19.97%
Underdogs in Moderate H2H Totals98-5862.82%+19.93%
Favorites with Cold Bats97-5862.58%+19.47%
with Inherited Runner Load70-4262.50%+19.32%
Underdogs with Low Home History158-10061.24%+16.91%
Underdogs with Weak Home Records158-10061.24%+16.91%
Underdogs with Weak Home Records158-10061.24%+16.91%
at Weak Home Venues101-6660.48%+15.46%
Teams with Elite Control Pitching82-5460.29%+15.11%
Ground-Ball Teams with Discipline84-5859.15%+12.93%
Run Line vs Overworked Starters128-8958.99%+12.61%
Teams with Active Outfield Arms97-6858.79%+12.23%
Teams with Workload Starters130-9458.04%+10.80%
Away Dogs with Weak Home Records204-15257.30%+9.40%
Road Dogs with Poor Home Records204-15257.30%+9.40%
Teams with Ground Ball & Relief Variance164-12456.94%+8.71%
Favorites vs Winning Home Teams407-31756.22%+7.32%
Favorites with Road Dog Pricing407-31756.22%+7.32%
Contact Favorites vs Weak Defenses355-28055.91%+6.73%
Teams vs Low-Contact Offenses327-25855.90%+6.71%
Fly Ball Teams with Limited Defense245-19655.56%+6.06%
Underdogs with Poor Home History438-35355.37%+5.71%
Underdogs with Weak Home Records438-35355.37%+5.71%
Underdogs with Weak Home Records438-35355.37%+5.71%
Underdogs with Volatile Power1187-100354.20%+3.47%
Underdogs with Ground-Heavy Bats1246-106853.85%+2.80%
Low OBP Teams with Tired Staffs1296-118152.32%-0.11%

Frequently Asked Questions

How many MLB ATS betting systems are tracked?

Trendline currently tracks 53 MLB ATS systems with a combined 16272-10567 record (60.63% hit rate) across 26839 graded picks. Each system is an ML-discovered rule tested against historical games and live-tracked going forward.

Which MLB ATS system has the highest ROI?

"Underdogs in Mid-Total H2H Games" currently leads all tracked MLB ATS systems at +48.48% ROI on a 98-28 record. ROI reflects performance against the closing line at $100 flat stakes — not a back-tested figure.

How do MLB ATS 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 ATS 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.

System records generated from proprietary ML analysis. Every record is graded against actual closing lines.

For informational and entertainment purposes only. Not betting advice. Please gamble responsibly.

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MLB ATS System Records | Trendline Labs