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Johnny Hamui
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| First name | Johnny |
| Last name | Hamui |
| Birth date | 01-26-1989 (19 years old) |
| Category | ATP |
| Residence | |
| Nationality | United States of America |
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Tournaments Played
 | Sep 02 | B18 | 1/32 | US Open, New York, NY |
| Aug 03 | B18 | 1/32 | National Hardcourt Championships, Kalamazoo, MI |
| Jul 23 | Fut. | 1/16 | USA F19 Futures, Godfrey, Il |
| Jun 30 | B18 | 1/32 | Wimbledon, Wimbledon |
| Jun 24 | B18 | 1/32 | ITF Juniors - Roehampton, Roehampton |
| Jun 04 | B18 | 1/32 | French Open / Roland Garros, Paris |
| May 28 | B18 | 1/16 | Astrid Bowl, Loverval |
| May 21 | B18 | 1/32 | Trofeo Bonfiglio, Milano |
| May 14 | Fut. | [Q] | USA F11 Futures, Tampa, FL |
| Apr 09 | B18 | 1/32 | USTA International Spring Championships, Carson, CA |
| Apr 09 | B18 | Finals | Easter Bowl ITF, Rancho Mirage, CA |
| Apr 02 | Chall. | 1/16 | San Luis Potosi Challenger, San Luis Potosi |
| Mar 19 | B18 | 1/32 | Copa Gerdau, Porto Alegre |
| Mar 12 | B18 | 1/32 | Banana Bowl, San Paulo |
| Mar 05 | B18 | 1/16 | Asuncion Bowl, Asuncion |
| Feb 26 | Int. Srs | [Q] | Abierto Mexicano TELCEL Presentado Por HSBC, Acapulco |
| Jan 21 | B18 | 1/32 | Australian Open, Melbourne |
| Jan 15 | B18 | 1/32 | Optus Nottinghill International, Nottinghill |
| Jan 01 | B18 | 1/16 | Coffee Bowl (Copa del Cafe), San Jose |
| Dec 25 | B18 | SF | International Casablanca Junior Cup, Tlalnepantla |
| Dec 11 | B18 | 1/8 | Yucatan World Cup, Merida |
| Dec 04 | B18 | 1/32 | Orange Bowl Tennis Championships, Key Biscayne, FL |
| Nov 28 | B18 | 1/32 | Eddie Herr International Junior Tennis Championships, Bradenton, FL |
| Nov 07 | B18 | | USTA ITF Junior Circuit - Lexington, Lexington, SC |
| Oct 30 | B18 | | Jerry Simmons ITF Junior Circuit - South Carolina, Lexington, SC |
| Oct 16 | B18 | QF | U18 ITF World Ranking Event, Montreal |
| Oct 10 | B18 | QF | Jerry Simmons Pan American Closed ITF Championships, Tulsa, OK |
| Sep 11 | B18 | | Kentucky International Junior Tennis Derby, Lexington, KY |
| Sep 01 | B18 | [Q] | US Open, New York, NY |
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