Jeeno Thitikul had a rocky closing stretch but did enough to expand her lead over Hall of Famer Lydia Ko, finishing with a birdie for a 4-under 68 on Saturday and a two-shot advantage in the Kroger Queen City Championship. Thitikul holed a 20-footer from the fringe for birdie on the par-4 15th hole to reach 5 under for the day and 17 under for the tournament, four shots ahead of Ko, before dropping shots on the next two holes. Ko shot 69.