Name: Sam Riffice
Country: USA
Birthdate: 01.03.99, 19 years
Ranking's position: 707
TOP ranking's position: 663 (23.04.18, 35 points)
Points: 33
Matches total: 107
Win: 67
%: 62.62 %
Country: USA
Birthdate: 01.03.99, 19 years
Ranking's position: 707
TOP ranking's position: 663 (23.04.18, 35 points)
Points: 33
Matches total: 107
Win: 67
%: 62.62 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2018 | 23/13 | 20/8 | 2/4 | 1/1 | 0/0 | 0/0 | 0/0 |
| 2017 | 33/16 | 5/4 | 26/10 | 1/1 | 0/0 | 1/1 | 0/0 |
| 2016 | 11/10 | 1/1 | 10/8 | 0/0 | 0/0 | 0/1 | 0/0 |
| 2015 | 0/1 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| TOTAL | 67/40 | 26/14 | 38/22 | 2/2 | 0/0 | 1/2 | 0/0 |
| perc. % | 62.62 % | 65 % | 63.33 % | 50 % | 0 % | 33.33 % | 0 % |
Sam Riffice / scheduled / last
| 21.07.18 11:50 | q 1 | Sam Riffice | Alexios Halebian | 6-3, 6-73, 6-1 | match details |  Binghamton Challenger | Hard |
Sam Riffice / last 50 matches
| 21.07.18 | q 1 | Sam Riffice | Alexios Halebian | 6-3, 6-73, 6-1 |  | match details | Binghamton Challenger | Hard |
| 07.07.18 | q 1 | Collin Altamirano | Sam Riffice | 7-63, 3-6, 6-4 |  | match details | Winnetka Challenger | Hard |
| 01.07.18 | fin | Marc-Andrea Huesler | Sam Riffice | 6-4, 6-2 | | match details | USA F17 | Hard |
| 30.06.18 | 1/2 | Sam Riffice | Emil Reinberg | 6-0, 6-3 | | match details | ||
| 29.06.18 | 1/4 | Sam Riffice | Mikael Torpegaard | 7-5, 6-1 | | match details | ||
| 28.06.18 | 2nd round | Sam Riffice | Henry Craig | 6-4, 2-6, 6-2 | | match details | ||
| 27.06.18 | 1st round | Sam Riffice | Maxime Cressy | 5-2, Maxime Cressy - retired | | match details | ||
| 22.06.18 | 1/4 | Henry Craig | Sam Riffice | 7-5, 7-5 | | match details | USA F15 | Hard |
| 21.06.18 | 2nd round | Sam Riffice | Ryan Peniston | 6-1, 7-5 | | match details | ||
| 20.06.18 | 1st round | Sam Riffice | Jacob Dunbar | 6-3, 6-4 | | match details | ||
| 18.06.18 | q 2 | Sam Riffice | Michael Ogden | 6-3, 6-4 | | match details | ||
| 18.06.18 | qual. | Sam Riffice | Jared Pratt | 6-1, 6-2 | | match details | ||
| 10.06.18 | q 1 | Brian Shi | Sam Riffice | 7-5, 6-3 | | match details | USA F13 | Hard |
| 13.05.18 | q 2 | Maxime Janvier | Sam Riffice | 7-65, 6-0 | | match details |  Bordeaux Challenger | Clay |
| 12.05.18 | q 1 | Sam Riffice | Guillermo Duran | 6-2, 7-67 | | match details | ||
| 01.05.18 | 1st round | Marc Polmans | Sam Riffice | 1-6, 6-4, 6-2 | | match details | Savannah Challenger | Clay |
| 14.04.18 | 1/2 | Karue Sell | Sam Riffice | 6-2, 4-6, 6-1 | | match details | USA F10 | Hard |
| 13.04.18 | 1/4 | Sam Riffice | Michael Redlicki | 6-4, 6-4 | | match details | ||
| 12.04.18 | 2nd round | Sam Riffice | Samuel Monette | 6-2, 6-3 | | match details | ||
| 11.04.18 | 1st round | Sam Riffice | Samuel Shropshire | 6-2, 6-0 | | match details | ||
| 10.04.18 | q 2 | Sam Riffice | Noah Schachter | 6-3, 6-4 | | match details | ||
| 10.04.18 | qual. | Sam Riffice | Frank Barnett | 6-0, 6-1 | | match details | ||
| 09.04.18 | q 1 | Sam Riffice | Austin Williams | 6-2, 6-1 | | match details | ||
| 05.04.18 | 2nd round | Scott Griekspoor | Sam Riffice | 6-4, 7-65 | | match details | USA F9 | Hard |
| 04.04.18 | 1st round | Sam Riffice | Harrison Adams | 7-5, 6-2 | | match details | ||
| 26.02.18 | qual. | Michael Redlicki | Sam Riffice | 6-4, 6-4 | | match details |  Canada F1 | I. hard |
| 26.02.18 | q 2 | Sam Riffice | Joshua Lapadat | 6-2, 6-1 | | match details | ||
| 01.02.18 | 2nd round | Frederico Gil | Sam Riffice | 2-6, 7-63, 6-3 | | match details | USA F6 | Clay |
| 30.01.18 | 1st round | Sam Riffice | Or Ram-Harel | 4-6, 6-2, 6-3 | | match details | ||
| 24.01.18 | 1st round | Julien Cagnina | Sam Riffice | 7-5, 7-63 | | match details | USA F5 | Clay |
| 11.01.18 | 2nd round | Kaichi Uchida | Sam Riffice | 2-6, 6-3, 6-1 | | match details | USA F2 | Hard |
| 10.01.18 | 1st round | Sam Riffice | Trevor Allen Johnson | 3-6, 6-4, 6-3 | | match details | ||
| 03.01.18 | 1st round | Christopher Eubanks | Sam Riffice | 5-7, 6-3, 7-5 | | match details | USA F1 | Hard |
| 02.01.18 | qual. | Sam Riffice | Filip Bergevi | 7-5, 7-5 | | match details | ||
| 01.01.18 | q 2 | Sam Riffice | Sathi Reddy Chirala | 6-0, 3-0, Sathi Reddy Chirala - retired | | match details | ||
| 31.12.17 | q 1 | Sam Riffice | Perry Gregg | 6-0, 6-0 | | match details | ||
| 07.12.17 | 2nd round | Ryan Shane | Sam Riffice | 6-1, 6-3 | | match details | USA F40 | I. hard |
| 06.12.17 | 1st round | Sam Riffice | Felix Corwin | 6-2, 7-63 | | match details | ||
| 15.11.17 | 1st round | Alberto Barroso Campos | Sam Riffice | 6-4, 6-3 | | match details | USA F37 | Clay |
| 08.11.17 | 1st round | Felipe Mantilla | Sam Riffice | 6-3, 6-4 | | match details | USA F36 | Clay |
| 28.09.17 | 2nd round | Benjamin Lock | Sam Riffice | 7-63, 3-6, 7-66 | | match details | USA F32 | Hard |
| 26.09.17 | 1st round | Sam Riffice | Ronan Joncour | 2-6, 6-0, 2-0, Ronan Joncour - retired | | match details | ||
| 21.09.17 | 2nd round | Henry Craig | Sam Riffice | 6-3, 6-2 | | match details | USA F31 | Hard |
| 20.09.17 | 1st round | Sam Riffice | Evan Song | 6-3, 6-4 | | match details | ||
| 07.09.17 | 3rd round | Emil Ruusuvuori | Sam Riffice | 4-6, 6-4, 6-2 | | match details | U.S. Open | Hard |
| 05.09.17 | 2nd round | Sam Riffice | Tomas Machac | 6-3, 6-0 | | match details | ||
| 03.09.17 | 1st round | Sam Riffice | Yuta Shimizu | 6-3, 6-2 | | match details | ||
| 26.07.17 | 2nd round | Dennis Nevolo | Sam Riffice | 6-3, 6-3 | | match details | USA F25 | Hard |
| 24.07.17 | 1st round | Sam Riffice | Hunter Callahan | 7-5, 6-3 | | match details | ||
| 12.07.17 | 2nd round | Constantin Bittoun Kouzmine | Sam Riffice | 7-68, 7-65 | | match details |  Wimbledon (juniors) | Grass |
