(UPDATED 17 JANUARY 2026)
- Achieved career-high No. 33 in June 2022, then defeated 6-time champion Isner at 2022 Atlanta en route to 3rd ATP 250 final on home soil.
- Captured 1st ATP Tour title at 2025 Houston as Q, after saving 1 MP vs. Gomez in qualifying, 3 MPs vs. Tabilo in 2R and 1 MP vs. Paul in SF and as No. 507 became 3rd-lowest-ranked champion in ATP Tour history (since 1990).
- Advanced to 1st ATP Tour QF, SF and final in his grass-court debut at 2021 Newport, becoming 2nd-youngest finalist at age 20 in 46-year tournament history (Rusedski, 19, in 1993).
- Reached 2021 US Open 4R as 20-year-old WC, becoming youngest American in US Open 4R since Roddick, 20, in 2002.
- Defeated No. 3 Ruud for biggest win of career and to reach 2023 Australian Open 3R.
- Qualified at 2019 US Open and ended former World No. 4 Berdych’s career for 1st tour-level win, then missed entire 2020 season due to toe injury.