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Is cambridgeisaac really profitable on Polymarket?
0xb51b3beffd13cde071ed799e70a7b0b598e8b4d9
Short answer
Mostly yes. cambridgeisaac made Polymarket's daily leaderboard on 80 days (2026-04-27 to 2026-09-25), adding up to $54K on those days. Their verified lifetime PnL is +$66K, at least as much as the board days imply, so the leaderboard is not hiding a pile of losing days. Recent windows from Polymarket: last week -$9K, last month -$5K.
All figures are Polymarket's own pre-fee numbers (taker fees not deducted), read from public APIs. How the verification works · All verified wallets
Read more: Is the Polymarket leaderboard accurate? · How to check a wallet's real PnL · Top Politics traders by verified PnL · Weekly reports · Methodology
Days on board80
Archive span200 days
First seen2026-04-27
Last seen2026-09-25
VerdictHolds up
At a glance
$66K
Verified lifetime PnL
$7.02MVolume
50.1%Win rate (sample) · n=399
0.96%PnL ÷ Volume
-$9K7-day PnL
-$5K30-day PnL
Curve: summed PnL on archived board days.
Win rate from the most recent closed-positions sample the API returned; large books may be incomplete.
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$66KVerified lifetime PnL
$13KEarned off the board
80Days on board
$54KBoard-day sum
-$9K7-day PnL
-$5K30-day PnL
Month by month
| Month | Days on a board | Summed PnL |
|---|---|---|
| 2026-04 | 3 | $2K |
| 2026-05 | 12 | $6K |
| 2026-06 | 18 | $19K |
| 2026-07 | 23 | $9K |
| 2026-08 | 14 | $16K |
| 2026-09 | 10 | $2K |
Which boards
Politics 56Tech 17Culture 9Sports 9Finance 5Weather 5
Method breakdown
Execution styleopen
Visible rebatesopen
Profit compositionnot measured yet
Measured layers
68% passive fills in the recent window; visible rebate $1K (89% maker / 11% taker)
Execution style
mostly passive
Passive ratio68%
Fills measured500
Window ends2026-09-25
Window scopeMost recent
Visible rebates
Maker-rebate heavy
Visible rebate total$1K
Maker rebate$1K
Taker rebate$126
Maker share89%
Taker share11%
Window2026-04-24 → 2026-10-12
Profit composition
No same-window profit composition for this address yet. When measured, this layer uses the official activity feed (trade cash vs rebate) — not a guess from lifetime PnL.
Verification check
Holds up
Board-day sum$54K
Verified lifetime PnL$66K
Verification gap$13K
Trade on Polymarket
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Archived 2026-10-29 · not refreshed since then · archive 2026-03-19 → 2026-10-29 (200 snapshots)