
Oeiras 4: Sofia Costoulas vs Elena Pridankina
Prediction market · Polymarket
Overview
This market refers to the tennis match between Sofia Costoulas and Elena Pridankina in the Oeiras 4, originally scheduled for April 22, 2026 at 5:00AM ET. This market will resolve to 'Sofia Costoulas' if Sofia Costoulas advances against Elena Pridankina. This market will resolve to 'Elena Pridankina' if Elena Pridankina advances against Sofia Costoulas. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 WTA Tour. A consensus of credible reporting may also be used.
Ticker
wta-costoul-pridank-2026-04-22
Volume
116.9K
24h volume
116.9K
1w volume
116.9K
Open interest
65.0K
Liquidity
0
Liquidity AMM
0
Liquidity CLOB
0
Start
Apr 20, 2026
End
Apr 29, 2026
Status
Closed
Access
Restricted
Created
Apr 22, 2026
Resolution source
https://www.wtatennis.com/scores
Event ID
399825
Slug
wta-costoul-pridank-2026-04-22
Markets
9
Raw event data
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"title": "Oeiras 4: Sofia Costoulas vs Elena Pridankina",
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"outcomePrices": "[\"0\", \"1\"]",
"volume": "211.1063",
"active": true,
"closed": true,
"marketMakerAddress": "",
"createdAt": "2026-04-20T17:00:34.411221Z",
"updatedAt": "2026-04-22T18:36:51.991685Z",
"closedTime": "2026-04-22 13:34:50+00",
"new": false,
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"restricted": true,
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"question": "Costoulas vs. Pridankina: Set 1 Games O/U 10.5",
"conditionId": "0x051357b192c1a62573dc2365d8462474fc973b085c58e1422e198cc6c3fb33e9",
"slug": "wta-costoul-pridank-2026-04-22-first-set-total-10pt5",
"resolutionSource": "https://www.wtatennis.com/scores",
"endDate": "2026-04-29T09:00:00Z",
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"image": "https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png",
"icon": "https://polymarket-upload.s3.us-east-2.amazonaws.com/wta-logo-41f331bdf1.png",
"description": "This market refers to the tennis match between Sofia Costoulas and Elena Pridankina in the Oeiras 4, originally scheduled for April 22, 2026 at 5:00AM ET.\nThis market will resolve to \"Over\" if the total number of games completed in the first set equals or exceeds 11. Otherwise, it will resolve to \"Under.\"\nAny first-set tiebreak counts as one (1) game toward the total.\nIf the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.\nResolution will be based on official WTA Challenger results.",
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"question": "Costoulas vs. Pridankina: Match O/U 21.5",
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"context_description": "In the WTA 125 Oeiras Open CETO round of 16 on outdoor clay, sixth seed Sofia Costoulas (#151) meets Elena Pridankina (#229) in their first head-to-head matchup. Costoulas advanced with a 6-4, 6-4 win over Anouk Koevermans in the round of 32 on April 20, rebounding from a quick second-round loss to Polona Hercog at W75 Portoroz clay last week, amid a 2-2 clay record recently; she enters off a W75 Kofu hard-court title in March. Pridankina dominated qualifier Milana Ivantsiv 6-1, 6-0 in her opener, extending a solid clay form (6-5 YTD) highlighted by a W35 Sabadell quarterfinal. No reported injuries or withdrawals shape this evenly matched generational clash between the 21-year-old Belgian and 20-year-old Russian.",
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"context_updated_at": "2026-04-22T15:35:47.072Z",
"league": "Oeiras 4"
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"abbreviation": "costoul",
"createdAt": "2026-01-02T17:00:01.213031Z",
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{
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"name": "Elena Pridankina",
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}- Oeiras 4: Sofia Costoulas vs Elena PridankinaVol 115.7KLiq 0End Apr 29, 2026Closed
- Costoulas vs. Pridankina: Set 1 Games O/U 8.5Vol 246Liq —End Apr 29, 2026Closed
- Set 1 Winner: Costoulas vs PridankinaVol 213Liq —End Apr 29, 2026Closed
- Costoulas vs. Pridankina: Set 1 Games O/U 9.5Vol 211Liq —End Apr 29, 2026Closed
- Costoulas vs. Pridankina: Match O/U 22.5Vol 154Liq —End Apr 29, 2026Closed
- Sofia Costoulas vs. Elena Pridankina: Total Sets O/U 2.5Vol 129Liq 0End Apr 29, 2026Closed
- Costoulas vs. Pridankina: Match O/U 21.5Vol 95Liq 0End Apr 29, 2026Closed
- Costoulas vs. Pridankina: Match O/U 23.5Vol 46Liq —End Apr 29, 2026Closed
- Costoulas vs. Pridankina: Set 1 Games O/U 10.5Vol 41Liq —End Apr 29, 2026Closed