2013 US Open – Wheelchair Quad Singles
| Wheelchair Quad Singles | |
|---|---|
| 2013 US Open | |
| Champion |
 Lucas Sithole
|
| Runner-up |
 David Wagner
|
| Final score | 3-6, 6-4, 6-4 |
David Wagner was the defending champion from 2011, since there was no competition in 2012 due to clash with the 2012 Summer Paralympics.
In the final, Lucas Sithole defeated Wagner 3-6, 6-4, 6-4.
Standings are determined by: 1) Number of wins; 2) Number of matches; 3) In two-players-ties, head-to-head records; 4) In three-players-ties, percentage of sets won, or of games won; 5) Steering Committee decision.
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