---
title: "Shion Yamada vs Haruto Koyanagi"
canonical_url: https://betcrypto.now/events/shion-yamada-vs-haruto-koyanagi
status: settled
kickoff_at: 2026-10-18T01:00:00+00:00
trading_closes_at: 2026-10-19T03:59:00+00:00
settled_at: 2026-10-18T03:55:59+00:00
total_volume_usd: 0
venues: ["Polymarket", "Polymarket US"]
categories: ["Sports", "Tennis"]
prices_as_of: 2026-10-25T15:13:20+00:00
publisher: BetCrypto
data_api: https://betcrypto.now/api/v1/events/shion-yamada-vs-haruto-koyanagi
---

# Shion Yamada vs Haruto Koyanagi

Settled · kickoff 2026-10-18 01:00 UTC · listed on Polymarket, Polymarket US

## Result

**Shion Yamada** won. Settled 2026-10-18.

## About

This market refers to the tennis match between Shion Yamada and Haruto Koyanagi in the M15 Tanagura, Qualifying, originally scheduled for October 17, 2026 at 9:00PM ET.

This market will resolve to 'Shion Yamada' if Shion Yamada advances against Haruto Koyanagi.

This market will resolve to 'Haruto Koyanagi' if Haruto Koyanagi advances against Shion Yamada.

If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 31, 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

- M15 Tanagura: Shion Yamada vs Haruto Koyanagi Set Handicap +/-1.5 — 2 outcomes
- M15 Tanagura: Shion Yamada vs Haruto Koyanagi 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/880171?via=md)
- [Polymarket US](https://betcrypto.now/go/e/878062?via=md)

---

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/shion-yamada-vs-haruto-koyanagi.

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