Highest ROI trades on Polymarket

The biggest return-on-cost trades that hit — someone took a long-shot position and it paid. Ranked by ROI (profit ÷ cost), from every resolved position on-chain. Click any trader to explore their full history.

Top trade

Ma…er turned $1.2K into $10.3K

7.3× ROI

All Sports Crypto Esports Politics Tennis World Pop Culture Stocks

Resolved within

All time 7d 30d 90d 1y

#	Trader	Market	Entry	Cost	Profit	ROI	Resolved
1	Ma…er	Will Bulgaria win Eurovision 2026?	4.7¢	$1.2K	+$9.0K	7.3×	May 17, 2026
2	DK…in	Will Bulgaria win Eurovision 2026?	11.8¢	$682.59	+$5.1K	7.5×	May 17, 2026
3	Wa…ll	Will MrBeast's next video get less than 20 million views on day 1?	10.3¢	$574.52	+$4.5K	7.9×	Jul 26, 2026
4	Da…na	Will Dave Portnoy launch a coin before March?	11.0¢	$1.3K	+$10.7K	8.1×	Feb 17, 2025
5	cr…or	Will Finland be in the top 5 at Eurovision 2026?	9.3¢	$1.0K	+$9.8K	9.7×	May 17, 2026
6	Go…er	Will MrBeast's next video get between 30 and 35 million views on day 1?	7.0¢	$905.89	+$9.8K	10.8×	Jan 8, 2026
7	Ca…by	Will Bulgaria win Eurovision 2026?	8.4¢	$515.73	+$5.6K	10.9×	May 17, 2026
8	0x5a…b7	Will Bulgaria win Eurovision 2026?	8.4¢	$2.7K	+$30.1K	10.9×	May 17, 2026
9	sk…ch	Will Bulgaria win Eurovision 2026?	8.3¢	$24.2K	+$264.7K	10.9×	May 17, 2026
10	du…ax	Will The Weeknd be the third most streamed Spotify artist for 2025?	7.7¢	$615.00	+$7.4K	12.0×	Dec 3, 2025
11	ol…n2	Will Bulgaria win Eurovision 2026?	7.5¢	$857.90	+$10.5K	12.3×	May 17, 2026
12	Bi…er	Will Beyoncé perform at the DNC?	7.4¢	$2.0K	+$25.2K	12.4×	Aug 23, 2024
13	He…92	Will Bulgaria win Eurovision 2026?	5.9¢	$748.67	+$10.4K	13.8×	May 17, 2026
14	Ry…mp	Will Kamala Harris go on SNL?	6.5¢	$724.14	+$10.4K	14.4×	Nov 3, 2024
15	t…m	Will Finland be in the top 5 at Eurovision 2026?	6.3¢	$629.99	+$9.4K	14.9×	May 17, 2026
16	Co…th	Will Finland be in the top 5 at Eurovision 2026?	5.6¢	$812.02	+$13.7K	16.9×	May 17, 2026
17	Th…77	Will Bulgaria win Eurovision 2026?	5.3¢	$767.44	+$13.6K	17.7×	May 17, 2026
18	v…e	Will Bulgaria win Eurovision 2026?	5.3¢	$543.88	+$9.8K	18.0×	May 17, 2026
19	Wi…k3	Caroline Ellison sentenced to 24-35 months in prison?	5.1¢	$2.2K	+$41.5K	18.7×	Sep 24, 2024

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ROI = realized profit ÷ cost basis on a single resolved position. Past performance does not predict future results. Not financial advice.