Caitlin Clark set the WNBA single-season record for assists with 320 in the Indiana Fever's 78-74 loss to the Las Vegas Aces on Friday night. (More Sports News)

Clark scored all 18 of her points in the second half and finished with nine assists and eight rebounds. The rookie broke the mark of 316 set last season by Alyssa Thomas of the Connecticut Sun.

Clark was scoreless on 0 for 5 shooting in the first half and picked up her third foul when she was called for a charge late in the second quarter as the Aces took a 43-35 lead into the break. She scored 14 points in the third quarter to help the Fever trim a 13-point deficit to 60-57 heading into the fourth quarter. 

Clark has continued to make history throughout her first year in the WNBA, surpassing the single-season three-point record among rookies on Aug. 28. She also dished out 19 assists in a loss to the Dallas Wings in July, setting a single-game record.