← Explore

Baseball · MLB

Home Underdog ML Index

Backs the home team's moneyline whenever they're priced as the underdog — betting that home advantage offsets the pricing.

Backtested and allocation-capped — a historical result, never a promised edge.

Strategy performanceLIVE

Live · strategy average · 8 picks, equal-weightedCurrent price: Polymarket US (6/8 picks)

54.0%Sep 17, 2026
+5.3% · 1W
67%63%58%54%

Equal-weighted average of every pick's real odds. Each range shows whoever was actually favored at ITS start, tracked through to now — not today's picks rewound. Not yet weighted by real dollars, since no position is bought into this strategy today; once a real purchase exists, this line becomes that position's real dollar value over time instead.

Individual bets in this strategy

Live price for every market this strategy currently tracks — each line is one selection.

Over99.6%
Athletics100.0%
Houston Astros58.5%
New York Mets54.0%
Chicago White Sox51.5%
Boston Red Sox53.0%
Los Angeles Angels51.0%
Chicago Cubs56.0%
100.0%
99.6%
58.5%
56.0%
54.0%
53.0%
51.5%
51.0%
MarketImplied odds
Los Angeles Dodgers vs. Cincinnati Reds99.6%
Athletics vs. Tampa Bay Rays100.0%
Kansas City Royals vs. Houston Astros58.5%US
Philadelphia Phillies vs. New York Mets54.0%US
Detroit Tigers vs. Chicago White Sox51.5%US
Boston Red Sox vs. Texas Rangers53.0%US
Minnesota Twins vs. Los Angeles Angels51.0%US
Chicago Cubs vs. Cincinnati Reds56.0%US

Rows marked US are real Polymarket US quotes; the rest are Polymarket (gamma-api + CLOB). Refreshed at most every 60 seconds. Prices are market odds, not a recommendation.

Performance by period
Historical
Average ROI+50.3%
-91%0%91%+60.1%2012+62.9%2014+20.7%2015+57.4%2019

Real backtest, 15% allocation cap · Baseball · bankroll reset to $10,000 each period.

Backtest results
Sport / competition
Baseball · MLB
Years tested
2021-2025
Total qualifying bets
1566
Hit rate
42.6%
Average odds
2.24
Average per-period ROI
50.3%
Recommended allocation cap
15%

HISTORICAL BACKTEST — NOT A GUARANTEE. Past hit rate and odds do not predict future results.

Trade
Sell
MLB
This basket · 8 live markets
Over
Yes 100¢No 0¢
Athletics
Yes 100¢No 0¢
Houston Astros
Yes 59¢No 42¢
New York Mets
Yes 54¢No 46¢
Chicago White Sox
Yes 52¢No 49¢
Boston Red Sox
Yes 53¢No 47¢
Los Angeles Angels
Yes 51¢No 49¢
Chicago Cubs
Yes 56¢No 44¢
Max allocation15%

Choosing your own cap is coming soon — every strategy trades at its backtested recommendation for now.

$
Total$100
At this strategy's backtest ROI$150.27

Historical, not a guarantee — real results will differ.

Connect your account to trade

Real orders on Polymarket US, a CFTC-regulated exchange. Your funds stay in your own venue account — Alto never holds them, and nothing here is advice.

More MLB strategies

Alto is a self-directed, non-custodial software interface — it never holds your funds. Orders placed here are real, executed in your own account at Polymarket US, a CFTC-regulated exchange; your money stays at the venue. Baskets are impersonal and standardized; nothing here is investment advice or a recommendation. Backtested figures are historical and are not a promise of future results. Availability is geo-routed by jurisdiction. Prediction-market trading involves substantial risk of loss.

© 2026 NEXA DEV LLC · Alto