Sei-Young Kim broke her own record on Sunday scoring a four-round total of 257 (-31) to win the 2018 Thornberry Creek LPGA Classic.
"I feel incredible," Sei-Young said.
-31 is the lowest score in relation to par in the entire 68 year history of the LPGA. The previous record was -27, which Sei-Young tied in 2016. Kim shot 32 sub-par holes in the tournament, also a new LPGA record.
"Second round, I had a double-bogey on 17. That was the only one I had," Sei-Young said. "It's crazy."
Last year's inaugural champion Katherine Kirk was equally impressed with Sei-Young's performance.
"We knew that you could go a low round on this golf course but she's taken it to a whole new level," Kirk said. "She knows how to win. She just kept the foot down and compliments to her."