# 2010 US Open – Boys' singles

The boys' singles tournament of the 2010 US Open started on Sunday, September 5, the seventh day of the main tournament.
Bernard Tomic was the defending champion, but he did not defend his title as he had stopped playing junior tournaments in 2010, despite still being eligible to do so as a 1992 birth.
Jack Sock, who received a wildcard into the singles main draw, won this tournament after defeating his compatriot, tenth-seeded Denis Kudla, in the final.

## Seeds

* Juan Sebastián Gómez (first round)
* Márton Fucsovics (semifinals)
* Tiago Fernandes (third round)
* Jiří Veselý (quarterfinals)
* Damir Džumhur (third round)
* Jason Kubler (first round)
* Duilio Beretta (second round, retired)
* Agustín Velotti (semifinals)
* James Duckworth (first round)
* Denis Kudla (final)
* Renzo Olivo (first round)
* Máté Zsiga (first round)
* Victor Baluda (quarterfinals)
* Dominic Thiem (first round)
* Roberto Quiroz (first round)
* Mitchell Frank (third round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| | Filip Horanský | 5 | 1 | | | | | | | | | | |
| 10 | Denis Kudla | 7 | 6 | | | | | | | | | | |
| 10 | Denis Kudla | 7 | 6 | | 10 | Denis Kudla | 6 | 6 | | | | | |
| | | | | | 8 | Agustín Velotti | 3 | 2 | | | | | |
| 4 | Jiří Veselý | 4 | 2 | | 8 | Agustín Velotti | 3 | 2 | | | | | |
| 8 | Agustín Velotti | 6 | 6 | | | | | | | | | | |
| 8 | Agustín Velotti | 6 | 6 | | | | | | 10 | Denis Kudla | 6 | 2 | 2 |
| | | | | | | | | | WC | Jack Sock | 3 | 6 | 6 |
| WC | Jack Sock | 6 | 7$^7$ | | | | | | | | | | | WC | Jack Sock | 3 | 6 | 6 |
| 13 | Victor Baluda | 3 | 6$^4$ | | | | | | | | | | |
| 13 | Victor Baluda | 3 | 6$^4$ | | WC | Jack Sock | 6 | 6 | | | | | |
| | | | | | 2 | Márton Fucsovics | 3 | 4 | | | | | |
| | Dennis Novikov | 2 | 6 | 3 | 2 | Márton Fucsovics | 3 | 4 | | | | | |
| 2 | Márton Fucsovics | 6 | 4 | 6 | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 1 | Juan Sebastián Gómez | 6$^4$ | 6 | 3 | | | | | | | | | | | | | | |
| WC | Andrea Collarini | 7$^7$ | 4 | 6 | WC | A Collarini | 7$^7$ | 6 | | | | | | | | | | |
| | Guilherme Clézar | 6 | 3 | 6 | | G Clézar | 6$^1$ | 3 | | | | | | | | | | |
| | Ricardo Rodríguez | 3 | 6 | 0 | | | | | | WC | A Collarini | 3 | 4 | | | | | |
| | Filip Horanský | 7$^7$ | 6 | | | | | | | | F Horanský | 6 | 6 | | | | | |
| WC | Junior Alexander Ore | 6$^5$ | 1 | | | F Horanský | 6 | 6 | | | | | | | | | | |
| | George Morgan | 6 | 4 | 7 | | G Morgan | 3 | 3 | | | | | | | | | | |
| 15 | Roberto Quiroz | 4 | 6 | 5 | | | | | | | | | | | | F Horanský | 5 | 1 |
| 10 | Denis Kudla | 4 | 6 | 6 | | | | | | | | | | | 10 | D Kudla | 7 | 6 |
| | Wang Chuhan | 6 | 1 | 3 | 10 | D Kudla | 4 | 6 | 6 | | | | | | | | | |
| Q | Daiki Kondo | 2 | 2 | | | K Krawietz | 6 | 4 | 2 | | | | | | | | | |
| | Kevin Krawietz | 6 | 6 | | | | | | | 10 | D Kudla | 6$^5$ | 7 | 6 | | | | |
| | Mate Delić | 6 | 6 | | | | | | | WC | E King | 7$^7$ | 5 | 4 | | | | |
| WC | Michael Redlicki | 3 | 4 | | | M Delić | 0 | 0 | | | | | | | | | | |
| WC | Evan King | 7 | 6 | | WC | E King | 6 | 6 | | | | | | | | | | |
| 6 | Jason Kubler | 5 | 1 | | | | | | | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 4 | Jiří Veselý | 7 | 6 | | | | | | | | | | | | | | |
| | Huang Liang-chi | 5 | 3 | | 4 | J Veselý | 6 | 6 | | | | | | | | | |
| Q | Mackenzie McDonald | 3 | 2 | | | A Rumyantsev | 3 | 2 | | | | | | | | | |
| | Alexander Rumyantsev | 6 | 6 | | | | | | 4 | J Veselý | 6 | 6$^2$ | 6 | | | | |
| | Raymond Sarmiento | 6$^6$ | 6 | 4 | | | | | | T Daniel | 1 | 7$^7$ | 0 | | | | |
| Q | Karue Sell | 7$^8$ | 4 | 6 | Q | K Sell | 5 | 4 | | | | | | | | | |
| | Taro Daniel | 6 | 6 | | | T Daniel | 7 | 6 | | | | | | | | | |
| 14 | Dominic Thiem | 4 | 0 | | | | | | | | | | | 4 | J Veselý | 4 | 2 |
| 12 | Máté Zsiga | 5 | 4 | | | | | | | | | | | 8 | A Velotti | 6 | 6 |
| | Joris De Loore | 7 | 6 | | | J De Loore | 3 | 2 | | | | | | | | | |
| | Hugo Dellien | 2 | 6 | 3 | WC | D Kosakowski | 6 | 6 | | | | | | | | | |
| WC | Daniel Kosakowski | 6 | 4 | 6 | | | | | WC | D Kosakowski | 6$^4$ | 5 | | | | | |
| LL | Giammarco Micolani | 4 | 7$^8$ | 6 | | | | | 8 | A Velotti | 7$^7$ | 7 | | | | | |
| | Dane Webb | 6 | 6$^6$ | 4 | LL | G Micolani | 6$^5$ | 4 | | | | | | | | | |
| | Matthias Wunner | 6 | 6$^2$ | 2 | 8 | A Velotti | 7$^7$ | 6 | | | | | | | | | |
| 8 | Agustín Velotti | 3 | 7$^7$ | 6 | | | | | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 5 | Damir Džumhur | 6 | 6 | | | | | | | | | | | | | | | |
| | Mathias Bourgue | 4 | 4 | | 5 | D Džumhur | 6 | 6 | | | | | | | | | | |
| Q | Sam Barry | 6 | 6 | | Q | S Barry | 4 | 2 | | | | | | | | | | |
| | Nick Chappell | 1 | 3 | | | | | | | 5 | D Džumhur | 6$^3$ | 3 | | | | | |
| | Ouyang Bowen | 1 | 6$^4$ | | | | | | | WC | J Sock | 7$^7$ | 6 | | | | | |
| WC | Jack Sock | 6 | 7$^7$ | | WC | J Sock | 6 | 6 | | | | | | | | | | |
| | Peter Heller | 6 | 7 | | | P Heller | 1 | 3 | | | | | | | | | | |
| 11 | Renzo Olivo | 3 | 5 | | | | | | | | | | | | WC | J Sock | 6 | 7$^7$ |
| 13 | Victor Baluda | 3 | 6 | 6 | | | | | | | | | | | 13 | V Baluda | 3 | 6$^4$ |
| | Ben Wagland | 6 | 1 | 3 | 13 | V Baluda | 6$^1$ | 6 | 6 | | | | | | | | | |
| | Jozef Kovalík | 6 | 6 | | | J Kovalík | 7$^7$ | 2 | 3 | | | | | | | | | |
| | Bjorn Fratangelo | 3 | 4 | | | | | | | 13 | V Baluda | 6 | 4 | 6 | | | | |
| | Ben McLachlan | 1 | 6$^4$ | | | | | | | 3 | T Fernandes | 4 | 6 | 3 | | | | |
| | Mate Pavić | 6 | 7$^7$ | | | M Pavić | 3 | 6$^5$ | | | | | | | | | | |
| WC | Mitchell Krueger | 0 | 1 | | 3 | T Fernandes | 6 | 7$^7$ | | | | | | | | | | |
| 3 | Tiago Fernandes | 6 | 6 | | | | | | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 7 | Duilio Beretta | 6 | 7 | | | | | | | | | | | | | | | |
| | Jeson Patrombon | 2 | 5 | | 7 | D Beretta | 6 | 6$^3$ | 1$^r$ | | | | | | | | | |
| Q | Julien Cagnina | 4 | 3 | | | D Novikov | 2 | 7$^7$ | 4 | | | | | | | | | |
| | Dennis Novikov | 6 | 6 | | | | | | | | D Novikov | 7 | 6 | | | | | |
| | Yasutaka Uchiyama | 7$^8$ | 4 | 6 | | | | | | | Y Uchiyama | 5 | 3 | | | | | |
| Q | Michael Zhu | 6$^6$ | 6 | 0 | | Y Uchiyama | 6 | 6 | | | | | | | | | | |
| | Jannick Lupescu | 5 | 6 | 7$^7$ | | J Lupescu | 2 | 3 | | | | | | | | | | |
| 9 | James Duckworth | 7 | 4 | 6$^3$ | | | | | | | | | | | D Novikov | 2 | 6 | 3 |
| 16 | Mitchell Frank | 6 | 6 | | | | | | | | | | | 2 | M Fucsovics | 6 | 4 | 6 |
| | Darian King | 4 | 1 | | 16 | M Frank | 6 | 6 | | | | | | | | | | |
| | Oliver Golding | 7$^{11}$ | 6 | | | O Golding | 4 | 2 | | | | | | | | | | |
| | Andrés Artuñedo | 6$^9$ | 3 | | | | | | | 16 | M Frank | 4 | 1 | | | | | |
| Q | Bruno Semenzato | 4 | 1 | | | | | | | 2 | M Fucsovics | 6 | 6 | | | | | |
| Q | Alexios Halebian | 6 | 6 | | Q | A Halebian | 6 | 1 | 3 | | | | | | | | | |
| | Lukáš Vrňák | 6 | 5 | 4 | 2 | M Fucsovics | 3 | 6 | 6 | | | | | | | | | |
| 2 | Márton Fucsovics | 4 | 7 | 6 | | | | | | | | | | | | | | |