Onorato grew up playing competitive tennis in Caracas, Venezuela. After moving to the U.S., he trained under the renowned coach Nick Bollettieri at IMG Academy in Florida, and he squared off against players like Robert Farah, who is now one of the world's top-ranked doubles players.
| Favourite | Implied | Odds |
|---|---|---|
| Taylor Fritz | 93% | 1.03 |
| Zizou Bergs | 92% | 1.04 |
| Alexander Zverev | 90% | 1.06 |
| Francisco Cerundolo | 90% | 1.05 |
| Hubert Hurkacz | 88% | 1.07 |
| Raphael Collignon | 87% | 1.10 |