Country
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
USA
23.10.80, 44 years
23.10.80, 44 years
Cecil Mamiit vs. Robert Kowalczyk - head to head matches
| 24.01.00 | 1st round | Cecil Mamiit | Robert Kowalczyk | 6-1, 6-2 | match details |  Waikoloa | Hard |
Cecil Mamiit form & Robert Kowalczyk form
Cecil Mamiit - last matches
| USA F7 - Hard | ||||
| 12.03.12 2nd round | vs. Pedro Zerbini | 6-1, 1-6, 3-6 |  | match details |
| 12.03.12 1st round | vs. Bassam Beidas | 7-5, 7-5 |  | match details |
 Davis Cup - Clay | ||||
| 16.09.11 Rubber 1 | vs. Ti Chen | 7-62, 2-6, 6-76, 3-6 | | match details |
| Los Angeles - Hard | ||||
| 23.07.11 q 1 | vs. Tim Smyczek | 2-6, 2-6 | | match details |
| Davis Cup - Clay | ||||
| 06.03.11 | vs. Go Soeda | 6-75, 2-6, 6-3, 3-6 | | match details |
| 04.03.11 Rubber 1 | vs. Tatsuma Ito | 4-6, 7-65, 3-6, 7-63, 7-9 | | match details |
| Calabasas Challenger - Hard | ||||
| 20.10.10 1st round | vs. Gary Sacks | 4-6, 5-7 | | match details |
| Tiburon Challenger - Hard | ||||
| 11.10.10 q 1 | vs. Boris Nicola Bakalov | 6-4, 6-3 | | match details |
| 11.10.10 q 2 | vs. Jesse Witten | 4-6, 4-6 | | match details |
| Sacramento Challenger - Hard | ||||
| 04.10.10 q 2 | vs. Gary Sacks | 6-4, 6-1 | | match details |
| 04.10.10 qual. | vs. Luka Gregorc | 6-74, 3-6 | | match details |
 Davis Cup - Hard | ||||
| 19.09.10 | vs. Yong-Kyu Lim | 3-6, 4-6, 6-4, 1-1, Yong-Kyu Lim - retired | | match details |
| 17.09.10 | vs. Suk-Young Jeong | 6-0, 6-1, 3-6, 0-6, 2-6 | | match details |
 Vancouver Challenger - Hard | ||||
| 02.08.10 q 2 | vs. David Martin | 3-6, 6-3, 3-6 | | match details |
| Atlanta - Hard | ||||
| 18.07.10 q 2 | vs. Tim Smyczek | 4-6, 2-6 | | match details |
| 17.07.10 q 1 | vs. Matt Reid | 6-2, 6-4 | | match details |
.png){kind=small} Davis Cup - Hard | ||||
| 11.07.10 | vs. Tsung-Hua Yang | 6-2, 3-6, 2-6, 6-3, 3-6 | | match details |
| 09.07.10 | vs. Ti Chen | 3-6, 6-3, 4-1, Ti Chen - retired | | match details |
| Winnetka Challenger - Hard | ||||
| 28.06.10 q 1 | vs. Connor Roth | 6-0, 6-2 | | match details |
| 28.06.10 q 2 | vs. Luka Gregorc | 6-3, 3-6, 3-6 | | match details |
| Ojai Challenger - Hard | ||||
| 02.06.10 1st round | vs. Samuel Groth | 1-6, 7-5, 6-72 | | match details |
| 31.05.10 q 2 | vs. Conor Pollock | 6-4, 6-1 | | match details |
| 31.05.10 qual. | vs. Matt Reid | 6-3, 6-4 | | match details |
| 31.05.10 q 1 | vs. Daniel Danilovic | 6-3, 6-4 | | match details |
| Carson Challenger - Hard | ||||
| 25.05.10 1st round | vs. Jamie Baker | 4-6, 7-62, 3-6 | | match details |
| 24.05.10 q 1 | vs. Phillip Simmonds | 6-3, 6-4 | | match details |
| 24.05.10 q 2 | vs. Conor Pollock | 6-1, 6-4 | | match details |
| 24.05.10 qual. | vs. Fritz Wolmarans | 6-2, 6-1 | | match details |
| Savannah Challenger - Clay | ||||
| 05.05.10 1st round | vs. Kei Nishikori | 4-6, 3-6 | | match details |
| 03.05.10 q 2 | vs. Adam Hubble | 6-1, 3-6, 6-3 | | match details |
Robert Kowalczyk - last matches
| USA F10 - Clay | ||||
| 03.05.04 1st round | vs. Adam Seri | 6-75, 0-6 | | match details |
| Waikoloa - Hard | ||||
| 24.01.00 1st round | vs. Cecil Mamiit | 1-6, 2-6 | | match details |
