Analytics
Resolved Michael Antonius on 18 Oct 2026.
The last daily price before settlement had Michael Antonius at 50.5%. The Quinn Vandecasteele side opened at 50% on 18 Oct 2026. Before it settled, the high was 50% on 18 Oct 2026 and the low 49.5% on 18 Oct 2026. $78.71K traded over the market's life.
21 wallets still hold shares. Winners redeem theirs after settlement, so what is left is mostly the losing side.
Polymarket record as of Oct 19, 10:54 PM UTC
6-hour closes of the Quinn Vandecasteele price, Polymarket CLOB, 2 points, 18 Oct, 06:00 UTC – 18 Oct, 12:00 UTC, chart shows 44%–56%
| Observed | Quinn Vandecasteele price |
|---|---|
| 18 Oct, 06:00 UTC | 50.0% |
| 18 Oct, 12:00 UTC | 49.5% |
Winners have redeemed their shares, so most of what is left is the losing side.
| Trader | Outcome | Shares |
|---|---|---|
| Solar Beacon 449C | Quinn Vandecasteele | 18.86K |
| Israel26 | Quinn Vandecasteele | 11.13K |
| ferrariChampions2026 | Quinn Vandecasteele | 1.13K |
| 0x1111111111 | Quinn Vandecasteele | 756 |
| Haku787 | Quinn Vandecasteele | 626.91 |
| clownly | Quinn Vandecasteele | 528.65 |
| Known-Icing | Quinn Vandecasteele | 302.92 |
| superlxj | Quinn Vandecasteele | 164.17 |
| capflip369 | Quinn Vandecasteele | 157.87 |
| paulaoofc | Quinn Vandecasteele | 120.44 |
Every wallet's public record, and 80,000 ranked by lifetime P&L: Polymarket leaderboard
This market refers to the tennis match between Quinn Vandecasteele and Michael Antonius in the Fort Worth, USA, Qualifying, originally scheduled for October 18, 2026 at 2:20PM ET. This market will resolve to 'Quinn Vandecasteele' if Quinn Vandecasteele advances against Michael Antonius. This market will resolve to 'Michael Antonius' if Michael Antonius advances against Quinn Vandecasteele. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 1, 2026, 11:59 PM ET (14 days after the scheduled start), this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.
Official listing: polymarket.com/event/atp-vandeca-antoniu-2026-10-18
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