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Home / Markets / US Open ATP: Frances Tiafoe vs Alex Michelsen
Resolved market scorecard

US Open ATP: Frances Tiafoe vs Alex Michelsen: result and scorecard

Resolved Frances Tiafoe. One day before close Polymarket priced that outcome at 58.5%; a week before, –. $6.9M traded in total.

Updated 2026-11-06 03:03 UTC · Source: Polymarket · 18+ · Market prices, not predictions or advice

Result

Frances Tiafoe
resolved September 8, 2026

Price 1 day before

58.5%
Market was a coin flip

Price 7 days before

–
30 days before: –

Volume

$6.9M
28 outcomes

TennisSportsGames

Final prices by outcome

OutcomeResultVolume
Frances TiafoeWON$6.9M
US Open ATP: Frances Tiafoe vs Alex Michelsen Total Sets: O/U 3.5 · Over 3.5WON$9K
US Open ATP: Frances Tiafoe vs Alex Michelsen Match O/U 38.5 · OverWON$9K
US Open ATP: Frances Tiafoe vs Alex Michelsen Game Spread +/-1.5 · MichelsenWON$7K
US Open ATP: Frances Tiafoe vs Alex Michelsen Set Handicap +/-1.5 · TiafoeWON$6K
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 2 Winner · MichelsenWON$5K
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 1 Winner · MichelsenWON$5K
US Open ATP: Frances Tiafoe vs Alex Michelsen Match O/U 40.5 · OverWON$4K
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 3 Winner · TiafoeWON$4K
US Open ATP: Frances Tiafoe vs Alex Michelsen Set Handicap +/-2.5 · TiafoeWON$4K
US Open ATP: Frances Tiafoe vs Alex Michelsen Set Handicap +/-1.5 · MichelsenWON$2K
US Open ATP: Frances Tiafoe vs Alex Michelsen Set Handicap +/-2.5 · MichelsenWON$1K
US Open ATP: Frances Tiafoe vs Alex Michelsen Match O/U 36.5 · OverWON$806
US Open ATP: Frances Tiafoe vs Alex Michelsen Total Sets: O/U 4.5 · Over 4.5WON$276
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 1 O/U 10.5 · OverWON$14
Completed MatchWON$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 4 Winner · TiafoeWON$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 1 O/U 8.5 · OverWON$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 1 O/U 9.5 · OverWON$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 2 O/U 8.5 · OverWON$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 2 O/U 9.5 · UnderWON$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 2 O/U 10.5 · UnderWON$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 3 O/U 8.5 · OverWON$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 3 O/U 9.5 · OverWON$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 3 O/U 10.5 · OverWON$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 4 O/U 8.5 · OverWON$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 4 O/U 9.5 · UnderWON$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 4 O/U 10.5 · UnderWON$0
Alex MichelsenLOST$6.9M
US Open ATP: Frances Tiafoe vs Alex Michelsen Total Sets: O/U 3.5 · Under 3.5LOST$9K
US Open ATP: Frances Tiafoe vs Alex Michelsen Match O/U 38.5 · UnderLOST$9K
US Open ATP: Frances Tiafoe vs Alex Michelsen Game Spread +/-1.5 · TiafoeLOST$7K
US Open ATP: Frances Tiafoe vs Alex Michelsen Set Handicap +/-1.5 · MichelsenLOST$6K
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 2 Winner · TiafoeLOST$5K
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 1 Winner · TiafoeLOST$5K
US Open ATP: Frances Tiafoe vs Alex Michelsen Match O/U 40.5 · UnderLOST$4K
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 3 Winner · MichelsenLOST$4K
US Open ATP: Frances Tiafoe vs Alex Michelsen Set Handicap +/-2.5 · MichelsenLOST$4K
US Open ATP: Frances Tiafoe vs Alex Michelsen Set Handicap +/-1.5 · TiafoeLOST$2K
US Open ATP: Frances Tiafoe vs Alex Michelsen Set Handicap +/-2.5 · TiafoeLOST$1K
US Open ATP: Frances Tiafoe vs Alex Michelsen Match O/U 36.5 · UnderLOST$806
US Open ATP: Frances Tiafoe vs Alex Michelsen Total Sets: O/U 4.5 · Under 4.5LOST$276
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 1 O/U 10.5 · UnderLOST$14
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 4 Winner · MichelsenLOST$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 1 O/U 8.5 · UnderLOST$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 1 O/U 9.5 · UnderLOST$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 2 O/U 8.5 · UnderLOST$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 2 O/U 9.5 · OverLOST$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 2 O/U 10.5 · OverLOST$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 3 O/U 8.5 · UnderLOST$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 3 O/U 9.5 · UnderLOST$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 3 O/U 10.5 · UnderLOST$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 4 O/U 8.5 · UnderLOST$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 4 O/U 9.5 · OverLOST$0
US Open ATP: Frances Tiafoe vs Alex Michelsen Set 4 O/U 10.5 · OverLOST$0

Price history to resolution

0%25%50%75%100%09-0709-0709-08
Frances TiafoeUS Open ATP: Frances Tiafoe vs Alex Michelsen Total Sets: O/U 3.5 · Over 3.5US Open ATP: Frances Tiafoe vs Alex Michelsen Match O/U 38.5 · OverUS Open ATP: Frances Tiafoe vs Alex Michelsen Game Spread +/-1.5 · Michelsen
📱 Compare how the same event is priced across venues on Polymtrade.Referral link. 18+.

Scorecard

A market that prices the eventual outcome at 59% the day before is getting it right in the simplest sense, but a single market says little about calibration. Across many markets, outcomes priced at 70% should happen about 70% of the time. See the monthly scorecard for the aggregate record.

Resolution rules

This market refers to the tennis match between Frances Tiafoe and Alex Michelsen in the US Open ATP, originally scheduled for September 8, 2026 at 11:30AM ET. This market will resolve to 'Frances Tiafoe' if Frances Tiafoe advances against Alex Michelsen. This market will resolve to 'Alex Michelsen' if Alex Michelsen advances against Frances Tiafoe. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 22, 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.

Frequently asked questions

How did "US Open ATP: Frances Tiafoe vs Alex Michelsen" resolve?
It resolved Frances Tiafoe around September 15, 2026.
What did the market predict?
Polymarket priced the winning outcome at 58.5% one day before close, – one week before and – one month before.
How much was traded?
$6.9M across 28 outcomes.

Related on BetG8

Data: Polymarket Gamma and CLOB APIs, fetched by BetG8 at the time shown above. Venues may restrict access by location. 18+ only.