What is the resolution source for this market?

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

M15 莫納斯提爾：洛倫佐·萊蒂耶裏 (Lorenzo Lettieri) VS 馬克·格里亞齊烏丁·特維爾斯科伊 (Mark Griaziutin Tverskoy)

Name: M15 莫納斯提爾：洛倫佐·萊蒂耶裏 (Lorenzo Lettieri) VS 馬克·格里亞齊烏丁·特維爾斯科伊 (Mark Griaziutin Tverskoy) | Future
Creator: Polymarket

Sports/Tennis

2 hours ago

結束日期Nov 15, 2026

流動性$62.9

交易量$0

OI$0

Lorenzo Lettieri

50%

Mark Griaziutin Tverskoj