Portland Classic: Yubol leads, Schubert and Zhang charge

Arpichaya Yubol leads by one after Round 2 with back-to-back 66s and elite putting. Sophia Schubert tied the lead on 18 after a putting overhaul. Rose Zhang shot 66 with a 40-foot birdie, tied for 5th. Jeeno Thitikul is four back. Tournament still developing with a crowded leaderboard.