What is the Swiatek vs. Rybakina 21.5 games prediction market?

It is a Polymarket market on the total number of games completed in the Cincinnati Open match between Iga Swiatek and Elena Rybakina.

What does Over 21.5 mean in this tennis market?

Over wins if the match includes at least 22 total games across all completed sets.

What does Under 21.5 mean?

Under wins if the match finishes with 21 or fewer total games across all sets.

Do tiebreaks count toward the game total?

Yes. Each tiebreak, including a Champions or Super tiebreak, counts as one game toward the market total.

What happens if the Swiatek-Rybakina match is not completed?

If the match begins but is not completed, the market resolves 50-50 under the listed exchange rules. The match is scheduled for August 20, 2026, with market resolution by August 27, 2026.

Part of: Cincinnati Open: Iga Swiatek vs Elena Rybakina

Swiatek vs. Rybakina: Match O/U 21.5

This Polymarket tennis market forecasts whether the Iga Swiatek vs. Elena Rybakina Cincinnati Open match will total 22 or more games. It resolves to Over at 22+ games and Under at 21 or fewer, with tiebreaks counting as one game; the match is scheduled for August 20, 2026, and the market resolves by August 27.

2 smart money signals detected, totaling $2,194.

Categories: Tennis, Sports, Games

Notable Trades

97% win-rate tennis specialist

A highly proven bettor with a 97% win rate and 46-point edge made a concentrated Over bet in a thin market.

This bettor has won 196 of 203 resolved positions and is up $254,436 lifetime.
They invested $1,160 on Over at 55¢, accounting for essentially all recent market volume.
The 51% average winning entry price versus a 97% win rate indicates unusually strong pricing skill across 163 events.

$1,035 on Over | Wallet win rate: 97%

97% win-rate tennis specialist

A highly proven bettor with a 97% win rate and 46-point edge made a concentrated Over bet in a thin market.

This bettor has won 196 of 203 resolved positions and is up $254,436 lifetime.
They invested $1,160 on Over at 55¢, accounting for essentially all recent market volume.
The 51% average winning entry price versus a 97% win rate indicates unusually strong pricing skill across 163 events.

$1,160 on Over | Wallet win rate: 97%

Top Holders

0x3b4c...b93b — Outcome 80194352, $10
0x5268...135d — Outcome 80194352, $7 (54% win rate)
0x5659...7a6b — Outcome 80194352, $4
0xbfd7...f0bf — Outcome 80194352, $2 (53% win rate)

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Swiatek vs. Rybakina: Match O/U 21.5

3dCincinnati Open: Iga Swiatek vs Elena Rybakina$2,194 tracked2 signalsTennisSportsGames

This market refers to the tennis match between Iga Swiatek and Elena Rybakina in the Cincinnati Open, originally scheduled for August 20, 2026 at 7:00PM ET. This market will resolve to "Over" if the total number of games completed across all sets equals or exceeds 22. Otherwise, it will resolve to "Under." All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total. If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50. Resolution will be based on official WTA statistics.

Price History — “Over”

55¢

52¢

49¢

Alert entriesHigh-conviction

Notable Trades