Liu landed seven triple jumps in Friday's program. All 12 of her technical elements received positive grades of execution. Her free skate score of 148.39 was her best this season by 16.93 points.

Liu, a 19-year-old who retired at 16, tallied a personal best 74.58 points Wednesday at TD Garden in Boston, taking a 1.14-point lead over Japan’s Mone Chiba going into Friday’s free skate (8 p.m. ET, ...