What is the resolution source for this market?

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

M15 沙姆沙伊赫：Volodymyr Iakubenko VS Constantin Bittoun Kouzmine

Name: M15 沙姆沙伊赫：Volodymyr Iakubenko VS Constantin Bittoun Kouzmine | Future
Creator: Polymarket

Sports/Tennis

4 hours ago

結束日期Nov 6, 2026

流動性$429.5

交易量$0

OI$0

Volodymyr Iakubenko

42%

58%

Constantin Bittoun Kouzmine