---
title: "Chia Yi Tsao vs Marika TANAKA"
canonical_url: https://betcrypto.now/events/chia-yi-tsao-vs-marika-tanaka-polymarket-us-f9f2014b
status: settled
kickoff_at: 2026-09-21T02:00:00+00:00
trading_closes_at: 2026-09-21T23:59:00+00:00
settled_at: 2026-09-21T04:05:43+00:00
total_volume_usd: 1272.36
venues: ["Polymarket", "Polymarket US"]
categories: ["Sports", "Tennis"]
prices_as_of: 2026-10-09T10:32:39+00:00
publisher: BetCrypto
data_api: https://betcrypto.now/api/v1/events/chia-yi-tsao-vs-marika-tanaka-polymarket-us-f9f2014b
---

# Chia Yi Tsao vs Marika TANAKA

Settled · kickoff 2026-09-21 02:00 UTC · $1,272 traded · listed on Polymarket, Polymarket US

## Result

**Chia Yi Tsao** won. Settled 2026-09-21.

## About

This market refers to the tennis match between Chia Yi Tsao and Marika TANAKA in the W50 Nanao, Qualifying, originally scheduled for September 20, 2026 at 10:00PM ET.

This market will resolve to 'Chia Yi Tsao' if Chia Yi Tsao advances against Marika TANAKA.

This market will resolve to 'Marika TANAKA' if Marika TANAKA advances against Chia Yi Tsao.

If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 4, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.

_From Polymarket's listing._

## Other markets

- Completed Match — 2 outcomes
- W50 Nanao: Chia Yi Tsao vs Marika TANAKA Set 1 Winner — 2 outcomes
- W50 Nanao: Chia Yi Tsao vs Marika TANAKA Set 2 Winner — 2 outcomes
- W50 Nanao: Chia Yi Tsao vs Marika TANAKA Total Sets: O/U 2.5 — 2 outcomes
- W50 Nanao: Chia Yi Tsao vs Marika TANAKA Set 1 O/U 8.5 — 2 outcomes
- W50 Nanao: Chia Yi Tsao vs Marika TANAKA Set 1 O/U 9.5 — 2 outcomes
- W50 Nanao: Chia Yi Tsao vs Marika TANAKA Set 1 O/U 10.5 — 2 outcomes
- W50 Nanao: Chia Yi Tsao vs Marika TANAKA Set 2 O/U 8.5 — 2 outcomes
- W50 Nanao: Chia Yi Tsao vs Marika TANAKA Set 2 O/U 9.5 — 2 outcomes
- W50 Nanao: Chia Yi Tsao vs Marika TANAKA Set 2 O/U 10.5 — 2 outcomes
- Total O/U 21.5 — 2 outcomes
- Total O/U 22.5 — 2 outcomes
- Total O/U 23.5 — 2 outcomes
- W50 Nanao: Chia Yi Tsao vs Marika TANAKA Set Handicap +/-1.5 — 2 outcomes
- W50 Nanao: Chia Yi Tsao vs Marika TANAKA Set Handicap +/-1.5 — 2 outcomes

_Every market's prices are on the event page._

## Open on a venue

- [Polymarket](https://betcrypto.now/go/e/577592?via=md)
- [Polymarket US](https://betcrypto.now/go/e/576793?via=md)

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Probability is the cross-venue consensus (book midpoints, 0–100%). Venue columns are what buying costs there (the ask). Prices move constantly; re-check at the canonical URL or https://betcrypto.now/api/v1/events/chia-yi-tsao-vs-marika-tanaka-polymarket-us-f9f2014b.

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