Thai-Son Kwiatkowski
Thai-Son Kwiatkowski is an American tennis player. He played collegiately for the Virginia Cavaliers. On May 29, 2017, Kwiatkowski won the NCAA Men's Singles Championship. This victory earned him a wild card into the main draw of the 2017 US Open where he lost in the first round to Mischa Zverev.
Amateur career
Coming out of high school, he was the nation's top recruit. Kwiatkowski was on three national championship teams during his time at Virginia. As a sophomore, he tied the school's single season wins record, going 44-8 during the season. On September 11, 2016, Kwiatkowski won the American Collegiate Invitational, which earned him a wild card into the qualifying tournament for the 2017 US Open. After his senior season, he was named first-team all-ACC. Kwiatkowski won the singles title at the 2017 NCAA Men's Singles Championship, defeating William Blumberg in the final.Professional career
After winning the NCAA singles championship, Kwiatkowski was awarded a wild card into the main draw of the 2017 US Open. He faced the 23rd seed Mischa Zverev in the first round, losing in five sets.Personal life
Thai-Son's parents are Wendi and Tim Kwiatkowski. He has a younger brother named Liem. His parents are both University of Virginia alumni. Kwiatkowski is of Vietnamese and Polish descent. Kwiatkowski majored in commerce.Challenger and Futures finals
Singles: 5 (5–0)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Win | 1–0 | Puerto Rico F1, Mayagüez | Futures | Hard |  Alexios Halebian | 6–1, 6–4 | |
| Win | 2–0 | USA F33, Houston | Futures | Hard | Sebastian Korda | 6–2, 6–2 | |
| Win | 3–0 | Singapore F1, Singapore | Futures | Hard |  Soichiro Moritani | 6–2, 6–2 | |
| Win | 4–0 | Canada F3, Calgary | Futures | Hard | Paul C. Oosterbaan | 6–4, 6–3 | |
| Win | 5–0 | 2020 Oracle Challenger Series – Newport Beach – Men's Singles| | Newport Beach, USA | Challenger | Hard |  Daniel Elahi Galán | 6–4, 6–1 |
Doubles: 12 (5–7)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Win | 1–0 | USA F17, Charlottesville | Futures | Hard | Mac Styslinger |  Greg Jones Jose Statham | 6–4, 6–1 | |
| Win | 2–0 | USA F18, Winston-Salem | Futures | Hard | Jared Hiltzik | Austin Smith Dennis Uspensky | 6–4, 6–2 | |
| Loss | 2–1 | Finland F1, Kaarina | Futures | Clay | Jose Statham |  Herkko Pöllänen Mikael Torpegaard | 7–6, 3–6, | |
| Loss | 2–2 | Puerto Rico F1, Mayagüez | Futures | Hard | Quinton Vega |  Nebojša Perić Ilija Vučić | 1–6, 3–6 | |
| Win | 3–2 | France F5, Toulouse | Futures | Hard |  Fabien Reboul |  Niels Desein Yannick Jankovits | 6–3, 7–6 | |
| Loss | 3–3 | USA F20, Rochester | Futures | Clay | Luca Corinteli |  Hugo Di Feo Mikael Torpegaard | 6–7, 4–6 | |
| Loss | 3–4 | USA F33, Houston | Futures | Hard | Austin Krajicek | Aron Hiltzik Dennis Nevolo | 6–7, 3–6 | |
| Loss | 3–5 | Mexico F7, Metepec | Futures | Hard | John Paul Fruttero |  Gonzalo Escobar Manuel Sánchez | 3–6, 3–6 | |
| Win | 4–5 | Canada F4, Kelowna | Futures | Hard |  Julian Bradley | Charlie Emhardt Samuel Shropshire | 7–6, 7–5 | |
| Loss | 4–6 | 2019 Tallahassee Tennis Challenger – Doubles| | Tallahassee, USA | Challenger | Clay | Noah Rubin |  Roberto Maytin Fernando Romboli | 2–6, 6–4, |
| Loss | 4–7 | 2019 Nielsen Pro Tennis Championships – Doubles| | Winnetka, USA | Challenger | Hard | Christopher Eubanks | JC Aragone Bradley Klahn | 5–7, 4–6 |
| Win | 5–7 | 2020 Oracle Challenger Series – Indian Wells – Men's Doubles| | Indian Wells, USA | Challenger | Hard | Denis Kudla | Sebastian Korda Mitchell Krueger | 6–3, 2–6, |