Lowest score to par in 72 holes at a golf LPGA Tour event

The lowest score to par at a 72-hole Ladies Professional Golf Association event is -31, achieved by Kim Sei-young (South Korea) on 5–8 July 2018 at the Thornberry Creek LPGA Classic in Oneida, Wisconsin, USA. She recorded rounds of 63, 65, 64 and 65 for a score of 257, also an LPGA record.

Sei-young recorded 31 birdies in 72 holes, also an LPGA record. She beat the existing record of -27, set by Annika Sorenstam at the 2001 Standard Register Ping and matched by Sei-young herself at the 2016 JTBC Founders Cup.