What is the resolution source for this market?

https://www.itftennis.com/en/tournament-calendar/

W15 萨姆特 (SC)：玛丽娜·斯凯格罗 (Marina Skegro) VS 爱丽丝·巴泰斯蒂 (Alice Battesti)

Name: W15 萨姆特 (SC)：玛丽娜·斯凯格罗 (Marina Skegro) VS 爱丽丝·巴泰斯蒂 (Alice Battesti) | Future
Creator: Polymarket

Sports/Tennis

8 hours ago

结束日期Nov 2, 2026

流动性$85.8

交易量$0

OI$0

Marina Skegro

26%

74%

Alice Battesti