Trendline Labs

Underdogs with Weak Home Records

Last updated: April 14, 2026

Backs underdogs with low win probability (40.7% or below) and poor home performance (49.32% home win rate or lower), isolating teams with below-average home records in unfavorable matchups.

Part of all MLB ATS system records.

Underdogs with Weak Home Records is a verified MLB spread betting system that backs underdogs with low win probability (40.7% or below) and poor home performance (49.32% home win rate or lower), isolating teams with below-average home records in unfavorable matchups. Tracked across 791 graded picks, it holds a 438-353 record with a 55.37% hit rate and 5.71% ROI. All results graded from verified game outcomes.

TOTAL PICKS

1672

HIT RATE

55.37%

RECORD

438-353

ROI

+5.71%

PERFORMANCE BREAKDOWN

438

791

353

WINS

TOTAL BETS

LOSSES

When This System Fires

The system places a pick only when every one of these triggers holds true at game time.

1

Implied Win Probability

at most 0.41implied_team_win_prob

Market implies the team wins less than 41% of the time.

2

Market Role

at most 0is_favorite

Team is the underdog.

3

Referee Home Win %

at most 0.49ref_home_win_pct

Crew has a historical home-team win rate below 49%.

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Frequently Asked Questions

Does the "Underdogs with Weak Home Records" MLB ATS system still work?

The system's live record is 438-353 (55.37% hit rate) with 5.71% ROI across 791 graded picks. Closing line value averages 0.00, meaning picks are consistently behind the sharpest closing price. Past performance doesn't guarantee future results — track it forward to confirm the edge persists.

When does the Underdogs with Weak Home Records system fire a pick?

The system triggers a MLB ats pick only when all 3 of its filter conditions are satisfied at game time. See the "When This System Fires" section above for the exact thresholds on each condition — the system waits for every trigger before placing a bet, which is why sample sizes are smaller than total games.

What is the sample size for the Underdogs with Weak Home Records system?

The system has been evaluated against 1672 total qualifying games, with 791 of those reaching a graded outcome (wins + losses). Sample size matters — any system under ~15-20 graded picks is noise; 50+ is where a real edge shows statistical signal.

Analysis generated by Optimus AI from proprietary ML system data.

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

Optimus

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Underdogs with Weak Home Records: 438-353 Record | MLB ATS