Highest ROI Baseball trades on Polymarket
The biggest return-multiple trades that hit — someone took a long-shot position and it paid. Ranked by ROI (realized profit ÷ gross traded notional), from every resolved position on-chain. Click any trader to explore their full history.
Top trade
Ba…ne made $4.5K on $550.00 of gross traded notional
8.1× ROI
Sub-category
| # | Trader | Market | Entry | Notional | Profit | ROI | Resolved |
|---|---|---|---|---|---|---|---|
| 1 | Ba…ne | Detroit Tigers vs. Cincinnati RedsSports · Baseball | 11.0¢ | $550.00 | +$4.5K | 8.1× | Apr 25, 2026 |
| 2 | 0x…03 | Milwaukee Brewers vs. Los Angeles DodgersSports · Baseball | 11.0¢ | $600.00 | +$4.9K | 8.1× | Oct 16, 2026 |
| 3 | sp…77 | Athletics vs. San Francisco GiantsSports · Baseball | 10.7¢ | $775.02 | +$6.5K | 8.3× | Jun 25, 2026 |
| 4 | Av…31 | Orioles vs. CubsSports · Baseball | 9.7¢ | $773.22 | +$6.5K | 8.3× | Aug 2, 2025 |
| 5 | 0x…65 | Milwaukee Brewers vs. Los Angeles DodgersSports · Baseball | 10.5¢ | $7.0K | +$59.3K | 8.5× | Oct 16, 2026 |
| 6 | Be…ic | Rockies vs. OriolesSports · Baseball | 10.3¢ | $1.4K | +$12.5K | 8.7× | Jul 26, 2025 |
| 7 | R…1 | Kansas City Royals vs. Minnesota TwinsSports · Baseball | 10.3¢ | $935.55 | +$8.1K | 8.7× | Jul 30, 2026 |
| 8 | j…e | Spread: Atlanta Braves (-2.5)Sports · Baseball | 10.3¢ | $900.00 | +$7.8K | 8.7× | Jul 23, 2026 |
| 9 | ML…RD | Orioles vs. CubsSports · Baseball | 10.1¢ | $1.6K | +$14.0K | 8.9× | Aug 2, 2025 |
| 10 | 0x…57 | Los Angeles Dodgers vs. Arizona DiamondbacksSports · Baseball | 10.0¢ | $811.12 | +$7.3K | 9.0× | Jun 5, 2026 |
| 11 | 0x…65 | Kansas City Royals vs. Minnesota TwinsSports · Baseball | 10.0¢ | $5.4K | +$48.2K | 9.0× | Jul 30, 2026 |
| 12 | Pl…fy | Athletics vs. Boston Red SoxSports · Baseball | 10.0¢ | $1.1K | +$10.2K | 9.0× | Aug 8, 2026 |
| 13 | up…24 | Philadelphia Phillies vs. Miami MarlinsSports · Baseball | 10.0¢ | $1.2K | +$10.7K | 9.0× | Jul 29, 2026 |
| 14 | fe…26 | Pittsburgh Pirates vs. Houston AstrosSports · Baseball | 9.7¢ | $972.56 | +$9.0K | 9.3× | Jun 4, 2026 |
| 15 | sw…ny | Spread: Los Angeles Angels (-3.5)Sports · Baseball | 9.7¢ | $1.4K | +$13.5K | 9.4× | Jun 7, 2026 |
| 16 | Be…ic | Braves vs. DiamondbacksSports · Baseball | 9.6¢ | $586.96 | +$5.5K | 9.4× | Apr 27, 2025 |
| 17 | tw…wo | Spread: Baltimore Orioles (-1.5)Sports · Baseball | 9.6¢ | $513.04 | +$4.9K | 9.5× | May 24, 2026 |
| 18 | 0x…28 | Athletics vs. Chicago CubsSports · Baseball | 9.5¢ | $852.07 | +$8.1K | 9.5× | Jun 5, 2026 |
| 19 | 0x…Fb | Angels vs. AthleticsSports · Baseball | 9.4¢ | $653.69 | +$6.3K | 9.6× | May 23, 2025 |
| 20 | Be…ic | Mariners vs. YankeesSports · Baseball | 9.2¢ | $1.1K | +$10.6K | 9.8× | Jul 11, 2025 |
| 21 | Ri…rs | Philadelphia Phillies vs. Los Angeles DodgersSports · Baseball | 9.0¢ | $1.4K | +$14.2K | 10.1× | May 31, 2026 |
| 22 | D…s | First Round Pool B: USA vs. ItalySports · Baseball | 9.0¢ | $630.00 | +$6.4K | 10.1× | Mar 11, 2026 |
| 23 | Fl…rp | Minnesota Twins vs. Detroit Tigers: O/U 6.5Sports · Baseball | 9.0¢ | $842.94 | +$8.5K | 10.1× | Sep 9, 2026 |
| 24 | F…x | Pirates vs. RockiesSports · Baseball | 8.9¢ | $3.0K | +$31.0K | 10.3× | Aug 2, 2025 |
| 25 | Th…de | Detroit Tigers vs. Arizona DiamondbacksSports · Baseball | 8.4¢ | $824.37 | +$9.0K | 11.0× | Apr 1, 2026 |
| 26 | Ce…un | First Round Pool B: USA vs. ItalySports · Baseball | 8.3¢ | $579.83 | +$6.4K | 11.0× | Mar 11, 2026 |
| 27 | su…28 | St. Louis Cardinals vs. Los Angeles DodgersSports · Baseball | 7.3¢ | $2.0K | +$21.6K | 11.1× | Sep 3, 2026 |
| 28 | 0x9b…75 | Philadelphia Phillies vs. Atlanta Braves: O/U 10.5Sports · Baseball | 7.1¢ | $628.11 | +$7.0K | 11.1× | Sep 12, 2026 |
| 29 | Hu…ry | Will the Milwaukee Brewers win the 2026 World Series?Sports · Baseball | 8.2¢ | $596.51 | +$6.7K | 11.2× | Oct 29, 2026 |
| 30 | Ho…rd | San Francisco Giants vs. Colorado RockiesSports · Baseball | 8.1¢ | $900.83 | +$10.2K | 11.3× | May 30, 2026 |
| 31 | Ba…ne | San Diego Padres vs. Colorado RockiesSports · Baseball | 8.0¢ | $520.94 | +$6.0K | 11.4× | Apr 23, 2026 |
| 32 | Ri…rs | Los Angeles Dodgers vs. Pittsburgh PiratesSports · Baseball | 8.0¢ | $621.97 | +$7.2K | 11.5× | Jun 11, 2026 |
| 33 | rb…tg | Astros vs. DodgersSports · Baseball | 7.8¢ | $1.0K | +$12.2K | 11.8× | Jul 5, 2025 |
| 34 | 0x…57 | First Round Pool B: USA vs. ItalySports · Baseball | 7.3¢ | $1.5K | +$18.8K | 12.4× | Mar 11, 2026 |
| 35 | 0x…65 | Philadelphia Phillies vs. Miami MarlinsSports · Baseball | 7.1¢ | $1.8K | +$23.0K | 13.1× | Jul 29, 2026 |
| 36 | 0x…65 | St. Louis Cardinals vs. Philadelphia PhilliesSports · Baseball | 7.1¢ | $3.1K | +$41.0K | 13.1× | Aug 23, 2026 |
| 37 | op…le | Will Venezuela win the 2026 World Baseball Classic?Sports · Baseball | 7.0¢ | $736.51 | +$9.8K | 13.4× | Mar 18, 2026 |
| 38 | pr…ch | Orioles vs. CubsSports · Baseball | 6.8¢ | $3.5K | +$47.5K | 13.7× | Aug 2, 2025 |
| 39 | li…ss | Will Venezuela win the 2026 World Baseball Classic?Sports · Baseball | 6.8¢ | $1.2K | +$15.9K | 13.8× | Mar 18, 2026 |
| 40 | Lo…os | San Francisco Giants vs. Colorado RockiesSports · Baseball | 6.6¢ | $685.95 | +$9.7K | 14.2× | May 30, 2026 |
| 41 | sl…da | Guardians vs. NationalsSports · Baseball | 2.4¢ | $3.2K | +$46.8K | 14.6× | May 7, 2025 |
| 42 | 0x…65 | St. Louis Cardinals vs. Los Angeles DodgersSports · Baseball | 6.0¢ | $642.33 | +$10.1K | 15.7× | Sep 3, 2026 |
| 43 | pr…ch | Yankees vs. MarlinsSports · Baseball | 5.3¢ | $1.2K | +$21.1K | 18.0× | Aug 2, 2025 |
| 44 | up…24 | New York Yankees vs. Chicago White SoxSports · Baseball | 5.2¢ | $650.07 | +$12.0K | 18.4× | Jul 30, 2026 |
| 45 | 0x…65 | Minnesota Twins vs. San Diego PadresSports · Baseball | 3.9¢ | $635.80 | +$15.6K | 24.6× | Aug 23, 2026 |
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ROI = realized profit ÷ gross traded notional on a single resolved position — the denominator is the Notional column (buy cost basis plus sell proceeds), not the cost basis. Profit is gross of fees. Past performance does not predict future results. Not financial advice.