Thai Son Kwiatkowski defeated Noah Rubin 7-5 4-6 6-1 in the Washington qualifying round of 16 on hard. The upset overturned the form book — Noah Rubin came in leading the head-to-head 2–1, defending last year's round of 16. That levelled the head-to-head at 2–2.
Son Kwiatkowski T. came through in three sets.
Hard: Son Kwiatkowski T. leads 2–1 · Clay: Rubin N. leads 1–0
Thai Son Kwiatkowski beat Noah Rubin 7-5 4-6 6-1. Umpiry, "Thai Son Kwiatkowski vs Noah Rubin — Washington Qualifying Round of 16", https://umpiry.com/match/2019-07-27/kwiatkowski-vs-rubin-washington-q16?utm_source=cite (as of 27 July 2019).