# 2011 US Open – Boys' singles

Jack Sock was the defending champion, but participated in the men's main draw, as he was ineligible to defend his title.
Oliver Golding claimed the title by defeating Jiří Veselý 5–7, 6–3, 6–4 in the final.

## Seeds

* Jiří Veselý (final)
* Luke Saville (first round)
* Bjorn Fratangelo (third round)
* Hugo Dellien (third round)
* Thiago Moura Monteiro (first round)
* Filip Horanský (quarterfinals)
* Dominic Thiem (first round)
* Mate Pavić (first round)
* Liam Broady (third round)
* George Morgan (semifinals)
* Andrew Whittington (first round)
* Patrick Ofner (first round)
* Oliver Golding (champion)
* João Pedro Sorgi (second round)
* Matías Sborowitz (second round)
* Jeson Patrombon (first round)

## Main 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 |
| 1 | Jiří Veselý | 7 | 6 | | | | | | | | | | |
| | Alexios Halebian | 5 | 2 | | | | | | | | | | |
| | Alexios Halebian | 5 | 2 | | 1 | Jiří Veselý | 6 | 6 | | | | | |
| | | | | | | Kyle Edmund | 4 | 2 | | | | | |
| | Karim Hossam | 2 | 4 | | | Kyle Edmund | 4 | 2 | | | | | |
| | Kyle Edmund | 6 | 6 | | | | | | | | | | |
| | Kyle Edmund | 6 | 6 | | | | | | 1 | Jiří Veselý | 7 | 3 | 4 |
| | | | | | | | | | 13 | Oliver Golding | 5 | 6 | 6 |
| 6 | Filip Horanský | 7 | 4 | 1 | | | | | | | | | | 13 | Oliver Golding | 5 | 6 | 6 |
| 13 | Oliver Golding | 5 | 6 | 6 | | | | | | | | | |
| 13 | Oliver Golding | 5 | 6 | 6 | 13 | Oliver Golding | 6 | 7$^7$ | | | | | |
| | | | | | 10 | George Morgan | 0 | 6$^2$ | | | | | |
| 10 | George Morgan | 6$^3$ | 6 | 6 | 10 | George Morgan | 0 | 6$^2$ | | | | | |
| | Adam Pavlásek | 7$^7$ | 4 | 4 | | | | | | | | | |

### Top half
#### Section 1

| 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 |
| 1 | Jiří Veselý | 6 | 6 | | | | | | | | | | | | | | |
| | Vladyslav Manafov | 3 | 1 | | 1 | J Veselý | 6 | 6 | | | | | | | | | |
| | Marcos Giron | 7$^7$ | 6 | | | M Giron | 1 | 3 | | | | | | | | | |
| Q | Enzo Couacaud | 6$^1$ | 4 | | | | | | 1 | J Veselý | 6 | 6 | | | | | |
| | Shane Vinsant | 6 | 4 | 2 | | | | | | N Milojević | 1 | 2 | | | | | |
| | Nikola Milojević | 3 | 6 | 6 | | N Milojević | 6 | 6 | | | | | | | | | |
| | Marco Aurei Núñez | 6 | 3 | 6$^6$ | 15 | M Sborowitz | 2 | 0 | | | | | | | | | |
| 15 | Matías Sborowitz | 3 | 6 | 7$^8$ | | | | | | | | | | 1 | J Veselý | 7 | 6 |
| 9 | Liam Broady | 6 | 6 | | | | | | | | | | | | A Halebian | 5 | 2 |
| Q | Stefano Napolitano | 1 | 1 | | 9 | L Broady | 6 | 6 | | | | | | | | | |
| WC | Gage Brymer | 3 | 2 | | | M Delić | 3 | 1 | | | | | | | | | |
| | Mate Delić | 6 | 6 | | | | | | 9 | L Broady | 6 | 4 | 3 | | | | |
| | Julian Lenz | 6 | 6 | | | | | | | A Halebian | 3 | 6 | 6 | | | | |
| | Yaraslau Shyla | 0 | 2 | | | J Lenz | 2 | 2 | | | | | | | | | |
| | Alexios Halebian | 6 | 6$^4$ | 7 | | A Halebian | 6 | 6 | | | | | | | | | |
| 5 | Thiago Moura Monteiro | 3 | 7$^7$ | 5 | | | | | | | | | | | | | |

#### Section 2

| 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 |
| 4 | Hugo Dellien | 7 | 6 | | | | | | | | | | | | | | |
| WC | Dennis Novikov | 5 | 4 | | 4 | H Dellien | 6 | 5 | 6 | | | | | | | | |
| Q | Bar Botzer | 6 | 4 | 2 | | K Uchida | 3 | 7 | 1 | | | | | | | | |
| | Kaichi Uchida | 4 | 6 | 6 | | | | | | 4 | H Dellien | 5 | 4 | | | | |
| WC | Ronnie Schneider | 1 | 4 | | | | | | | | K Hossam | 7 | 6 | | | | |
| | Karim Hossam | 6 | 6 | | | K Hossam | 2 | 7$^7$ | 6 | | | | | | | | |
| | Frederico Ferreira Silva | 3 | 6 | 7$^8$ | | F Ferreira Silva | 6 | 6$^2$ | 4 | | | | | | | | |
| 16 | Jeson Patrombon | 6 | 3 | 6$^6$ | | | | | | | | | | | K Hossam | 2 | 4 |
| 11 | Andrew Whittington | 5 | 2 | | | | | | | | | | | | K Edmund | 6 | 6 |
| Q | Filip Peliwo | 7 | 6 | | Q | F Peliwo | 6 | 6 | | | | | | | | | |
| | Sean Berman | 4 | 6$^2$ | | Q | J-h Kim | 3 | 2 | | | | | | | | | |
| Q | Kim Jae-hwan | 6 | 7$^7$ | | | | | | | Q | F Peliwo | 2 | 6 | 1 | | | |
| | Joris De Loore | 1 | 7 | 1 | | | | | | | K Edmund | 6 | 3 | 6 | | | |
| | Kyle Edmund | 6 | 5 | 6 | | K Edmund | 7$^7$ | 2 | 6 | | | | | | | | |
| | Mitchell Krueger | 6 | 6 | | | M Krueger | 6$^4$ | 6 | 1 | | | | | | | | |
| 7 | Dominic Thiem | 2 | 2 | | | | | | | | | | | | | | |

### Bottom half
#### Section 3

| 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 | Quarterfinals |
| 6 | Filip Horanský | 6 | 1 | 6 | | | | | | | | | | | | | | |
| | Mac Styslinger | 4 | 6 | 3 | 6 | F Horanský | 6 | 6 | | | | | | | | | | |
| | Aslan Karatsev | 6 | 3 | 7 | | A Karatsev | 3 | 2 | | | | | | | | | | |
| | Maxim Dubarenco | 4 | 6 | 5 | | | | | 6 | F Horanský | 6 | 6 | | | | | | |
| WC | Luca Corinteli | 4 | 6 | 3 | | | | | | P Krstin | 4 | 2 | | | | | | |
| | Yoshihito Nishioka | 6 | 3 | 6 | | Y Nishioka | 4 | 1 | | | | | | | | | | |
| | Peđa Krstin | 6 | 2 | 6 | | P Krstin | 6 | 6 | | | | | | | | | | |
| 12 | Patrick Ofner | 2 | 6 | 3 | | | | | | | | | | 6 | F Horanský | 7 | 4 | 1 |
| 13 | Oliver Golding | 6 | 6 | | | | | | | | | | | 13 | O Golding | 5 | 6 | 6 |
| WC | Brett Clark | 3 | 4 | | 13 | O Golding | 7 | 6 | | | | | | | | | | |
| Q | Constantin Christ | 2 | 6$^5$ | | | B Wagland | 5 | 3 | | | | | | | | | | |
| | Ben Wagland | 6 | 7$^7$ | | | | | | 13 | O Golding | 7 | 3 | 6 | | | | | |
| | Bruno Sant'anna | 6 | 6 | | | | | | 3 | B Frantangelo | 5 | 6 | 3 | | | | | |
| | Kimmer Coppejans | 4 | 4 | | | B Sant'anna | 3 | 3 | | | | | | | | | | |
| | Benjamin Ugarte | 1 | 3 | | 3 | B Frantangelo | 6 | 6 | | | | | | | | | | |
| 3 | Bjorn Fratangelo | 6 | 6 | | | | | | | | | | | | | | | |

#### Section 4

| 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 | Quarterfinals |
| 8 | Mate Pavić | 6 | 1 | 3 | | | | | | | | | | | | | | |
| WC | JC Aragone | 2 | 6 | 6 | WC | J Aragone | 6$^5$ | 3 | | | | | | | | | | |
| | Wayne Montgomery | 1 | 4 | | | R Kern | 7$^7$ | 6 | | | | | | | | | | |
| | Robin Kern | 6 | 6 | | | | | | | R Kern | 2 | 2 | | | | | | |
| | Diego Hidalgo | 4 | 4 | | | | | | 10 | G Morgan | 6 | 6 | | | | | | |
| | Connor Farren | 6 | 6 | | | C Farren | 6$^3$ | 6$^8$ | | | | | | | | | | |
| | Julien Cagnina | 7$^7$ | 4 | 2 | 10 | G Morgan | 7$^7$ | 7$^{10}$ | | | | | | | | | | |
| 10 | George Morgan | 6$^4$ | 6 | 6 | | | | | | | | | | 10 | G Morgan | 6$^3$ | 6 | 6 |
| 14 | João Pedro Sorgi | 6 | 7$^7$ | | | | | | | | | | | | A Pavlásek | 7$^7$ | 4 | 4 |
| WC | Thai-Son Kwiatkowski | 2 | 6$^3$ | | 14 | JP Sorgi | 3 | 4 | | | | | | | | | | |
| | Dennis Novak | 6$^6$ | 6 | 3 | Q | O Ram-Harel | 6 | 6 | | | | | | | | | | |
| Q | Or Ram-Harel | 7$^8$ | 3 | 6 | | | | | Q | O Ram-Harel | 7$^7$ | 3 | 2 | | | | | |
| | Gonzalo Lama | 6 | 6 | | | | | | | A Pavlásek | 6$^3$ | 6 | 6 | | | | | |
| Q | Michael Redlicki | 4 | 4 | | | G Lama | 0 | 0 | | | | | | | | | | |
| | Adam Pavlásek | 6 | 7 | | | A Pavlásek | 6 | 6 | | | | | | | | | | |
| 2 | Luke Saville | 4 | 5 | | | | | | | | | | | | | | | |