MLB markets — game lines and season futures. The wallets with the most realized profit in MLB markets — ranked by CopyGrade's own per-topic numbers (a wallet can be sharp in one topic and a money-loser in another). Each is paired with its CopyGrade Score: a high rank and a wallet you can actually copy are barely related.
Watching every MLB wallet by hand is the part that doesn't scale. Set one threshold and CopyGrade emails you when any wallet it tracks — on your watchlist or not — opens a buy at or above that size on MLB markets.
Game by game, every game day: which side the clean and flagged cohorts bought before first pitch on MLB markets, and how those leans settled. Aggregates only.
The highest-volume MLB markets on Polymarket. The wallets ranked above earned their standing in these markets — check a wallet's grade before you mirror its position.
Market
Yes
Volume
Ends
Will the Chicago White Sox win the 2026 World Series?
2%
$2.5M
Oct 31
Will the Washington Nationals win the 2026 World Series?
0%
$2.5M
Oct 31
Will the St. Louis Cardinals win the 2026 World Series?
1%
$2.1M
Oct 31
Will the Boston Red Sox win the 2026 World Series?
2%
$1.9M
Oct 31
Will the Miami Marlins win the 2026 World Series?
1%
$1.9M
Oct 31
Will the Colorado Rockies win the 2026 World Series?
1%
$1.8M
Oct 31
Will the Baltimore Orioles win the 2026 World Series?
0%
$1.7M
Oct 31
Will the Los Angeles Angels win the 2026 World Series?
1%
$1.7M
Oct 31
Why topic matters
Edge is topic-specific
A wallet that's +20% in MLB can be deep underwater in everything else — the global leaderboard hides that. These rankings are computed from public Polymarket trade history, net of modeled fees, and are CopyGrade's documented opinion, not a statement of fact about any trader. See how the score is calculated. Not financial advice.