Champaign CH 2021 ATP
Final
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Stefan Kozlov | m. | Aleksandar Vukic | 5-7 6-3 6-4 |
Semifinal
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Stefan Kozlov | m. | J J Wolf | 6-2 6-3 |
| Aleksandar Vukic | m. | Yosuke Watanuki | 7-6(8) 6-4 |
Perempat final
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Stefan Kozlov | m. | Mitchell Krueger | 6-4 6-4 |
| J J Wolf | m. | Vasil Kirkov | 6-3 6-2 |
| Aleksandar Vukic | m. | Go Soeda | 6-2 6-2 |
| Yosuke Watanuki | m. | Ben Shelton | 6-2 6-1 |
Babak 16 besar
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Mitchell Krueger | m. | Christian Harrison | 6-3 1-6 6-4 |
| Stefan Kozlov | m. | Keegan Smith | 6-3 6-1 |
| J J Wolf | m. | Kaichi Uchida | 6-3 6-4 |
| Vasil Kirkov | m. | Nick Chappell | 6-2 6-3 |
| Go Soeda | m. | Jason Jung | 6-4 5-7 6-4 |
| Aleksandar Vukic | m. | Gijs Brouwer | 6-4 6-4 |
| Ben Shelton | m. | Pedja Krstin | 4-6 6-0 6-1 |
| Yosuke Watanuki | m. | Daniel Altmaier | 6-2 6-1 |
Babak 32 besar
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Mitchell Krueger | m. | Nicolas Mejia | 6-3 6-3 |
| Christian Harrison | m. | Ezekiel Clark | 4-6 6-3 6-3 |
| Keegan Smith | m. | Michael Mmoh | 5-3 RET |
| Stefan Kozlov | m. | Jc Aragone | 3-6 6-3 6-4 |
| J J Wolf | m. | Tatsuma Ito | 6-3 3-6 6-3 |
| Kaichi Uchida | m. | Yasutaka Uchiyama | 6-4 3-1 RET |
| Nick Chappell | m. | Emilio Nava | 6-3 7-6(5) |
| Vasil Kirkov | m. | Prajnesh Gunneswaran | 7-5 6-1 |
| Jason Jung | m. | Mikael Torpegaard | 6-2 3-6 6-4 |
| Go Soeda | m. | Thai Son Kwiatkowski | 6-1 6-4 |
| Gijs Brouwer | m. | Aleksandar Kovacevic | 7-5 3-6 7-6(5) |
| Aleksandar Vukic | m. | Tung Lin Wu | 6-3 6-3 |
| Ben Shelton | m. | Blaz Rola | 3-6 6-4 6-4 |
| Pedja Krstin | m. | Arjun Kadhe | 7-5 7-5 |
| Yosuke Watanuki | m. | Alexis Galarneau | 6-4 4-6 6-0 |
| Daniel Altmaier | m. | Malek Jaziri | 6-3 6-4 |
Kualifikasi babak 2
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Gijs Brouwer | m. | Sho Shimabukuro | 6-3 6-2 |
| Keegan Smith | m. | Tristan Boyer | 7-6(4) 6-3 |
| Arjun Kadhe | m. | Evan King | 6-4 6-7(4) 6-2 |
| Ben Shelton | m. | Hunter Heck | 6-3 6-3 |
Kualifikasi babak 1
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Sho Shimabukuro | m. | Keenan Mayo | 6-1 6-2 |
| Gijs Brouwer | m. | Dennis Novikov | RET |
| Tristan Boyer | m. | Felix Corwin | 7-6(1) 7-6(3) |
| Keegan Smith | m. | Michael Redlicki | 6-3 6-7(5) 6-3 |
| Evan King | m. | Ruan Roelofse | 6-1 7-6(13) |
| Arjun Kadhe | m. | Sasi Kumar Mukund | 6-4 3-6 6-3 |
| Ben Shelton | m. | Govind Nanda | 6-4 6-4 |
| Hunter Heck | m. | Aidan Mchugh | 6-4 6-4 |