INFO: click on player name to show detailed player statistics
Nicole Frenkel vs. Kelly Chen - head to head matches
| 20.07.15 | qual. | Nicole Frenkel | Kelly Chen | 6-4, 6-3 | match details |  Sacramento | Hard |
Nicole Frenkel form & Kelly Chen form
Nicole Frenkel - last matches
| W25 Naples - Clay | ||||
| 16.05.22 q 1 | vs. Fenni Lian | - |  | match details |
 Encarnacion - Clay | ||||
| 07.11.17 1st round | vs. Melany Solange Krywoj | 6-4, 4-6, 4-6 | | match details |
| Asuncion - Clay | ||||
| 31.10.17 1st round | vs. Melany Solange Krywoj | 6-1, 1-6, 3-6 | | match details |
| Lambare - Clay | ||||
| 23.10.17 1st round | vs. Melany Solange Krywoj | 3-6, 6-74 | | match details |
| 23.10.17 qual. | vs. Florencia Devincenti | 6-3, 6-2 |  | match details |
| Baton Rouge - Hard | ||||
| 21.06.17 1st round | vs. Ashley Lahey | 3-6, 1-6 | | match details |
| 19.06.17 q 1 | vs. Maia Sosa | 6-0, 6-0 | | match details |
| 19.06.17 q 2 | vs. Rachel Janssen | 6-3, 6-0 | | match details |
| 19.06.17 qual. | vs. Amanda Rodgers | 7-62, 3-6, 6-2 | | match details |
| Dothan - Clay | ||||
| 17.04.17 q 1 | vs. Aleksandra Wozniak | 3-6, 4-6 | | match details |
| Jackson - Clay | ||||
| 05.04.17 1st round | vs. Victoria Flores | 2-3, - Nicole Frenkel - retired | | match details |
| Tampa - Clay | ||||
| 15.03.17 1st round | vs. Victoria Rodriguez | 4-6, 2-6 | | match details |
| Orlando - Clay | ||||
| 07.03.17 1st round | vs. Elizaveta Ianchuk | 2-6, 3-6 | | match details |
| Surprise - Hard | ||||
| 13.02.17 q 2 | vs. Michaela Gordon | 1-6, 1-6 | | match details |
| 13.02.17 q 1 | vs. Anna Maria Kalavska | 6-1, 6-2 | | match details |
| Midland - I. hard | ||||
| 01.02.17 1st round | vs. Sesil Karatantcheva | 4-6, 3-6 | | match details |
| 30.01.17 q 2 | vs. Anca Craciun | 6-2, 7-5 | | match details |
| 30.01.17 q 1 | vs. Katerina Kramperova | 6-0, 6-1 | | match details |
| 30.01.17 qual. | vs. Katarzyna Kawa | 6-74, 3-6 | | match details |
| Daytona Beach - Clay | ||||
| 09.01.17 q 1 | vs. Amanda Rodgers | 7-5, 6-2 | | match details |
| 09.01.17 q 2 | vs. Caroline Werner | 3-6, - Nicole Frenkel - retired | | match details |
 Toronto - I. hard | ||||
| 04.11.16 1/4 | vs. Jesika Maleckova | 1-6, 2-6 | | match details |
| 02.11.16 2nd round | vs. Renata Zarazua | 4-6, 6-4, 7-64 | | match details |
| 31.10.16 1st round | vs. Lauren Albanese | 6-4, 4-6, 6-4 | | match details |
| Las Vegas - Hard | ||||
| 26.09.16 q 1 | vs. Ema Burgic Bucko | 3-6, - Nicole Frenkel - retired | | match details |
| Albuquerque - Hard | ||||
| 21.09.16 1st round | vs. Paula Kania | 1-6, 2-6 | | match details |
| Lubbock - Hard | ||||
| 13.09.16 1st round | vs. Ema Burgic Bucko | 3-6, 3-6 | | match details |
| U.S. Open - Hard | ||||
| 05.09.16 1st round | vs. Vanessa Ong | 3-6, 7-5, 4-6 | | match details |
| New York - Hard | ||||
| 24.08.16 q 1 | vs. Ipek Soylu | 4-6, 1-6 | | match details |
| Fort Worth - Hard | ||||
| 02.08.16 1st round | vs. Elise Mertens | 5-7, 2-6 | | match details |
Kelly Chen - last matches
| W25 Fort - Hard | ||||
| 01.08.19 2nd round | vs. Alexa Glatch | 0-6, 2-6 | | match details |
| 31.07.19 1st round | vs. Elysia Bolton | 0-6, 6-4, 6-3 | | match details |
| W60 Berkeley - Hard | ||||
| 15.07.19 q 1 | vs. Abbie Myers | 7-60, 4-6, 9-11 | | match details |
| W60 Honolulu - Hard | ||||
| 10.07.19 1st round | vs. Risa Ozaki | 5-7, 4-6 | | match details |
| W25 Denver - Hard | ||||
| 19.06.19 1st round | vs. Alycia Parks | 1-6, 7-64, 6-72 | | match details |
| Florence - Hard | ||||
| 14.10.18 q 1 | vs. Kelley Anderson | 6-3, 4-6, 2-6 | | match details |
| Lubbock - Hard | ||||
| 18.09.18 qual. | vs. Michaela Gordon | 6-4, 2-6, 3-6 | | match details |
| 17.09.18 q 2 | vs. Rasheeda Mcadoo | 6-3, 6-2 | | match details |
| 16.09.18 q 1 | vs. Vladica Babic | 1-6, 6-2, 6-2 | | match details |
| Fort Worth - Hard | ||||
| 03.08.18 1/4 | vs. Paige Mary Hourigan | 5-7, 7-63, 5-7 | | match details |
| 02.08.18 2nd round | vs. Whitney Osuigwe | 6-70, 6-2, 6-4 | | match details |
| 01.08.18 1st round | vs. Lauren Proctor | 2-6, 6-1, 6-1 | | match details |
| 31.07.18 q 2 | vs. Kailey Evans | 6-0, 6-3 | | match details |
| 31.07.18 qual. | vs. Safiya Carrington | 6-77, 6-2, 6-1 | | match details |
| 30.07.18 q 1 | vs. Rosalyn Small | 6-0, 6-0 | | match details |
| Ashland - Hard | ||||
| 23.07.18 q 2 | vs. Cameron Morra | 1-6, 4-6 | | match details |
| 22.07.18 q 1 | vs. Brynn Boren | 6-3, 6-2 | | match details |
| Winnipeg - Hard | ||||
| 10.07.18 1st round | vs. Jodie Anna Burrage | 4-6, 1-6 | | match details |
| 08.07.18 qual. | vs. Eva Siska | 5-7, 6-3, 6-3 | | match details |
| 08.07.18 q 1 | vs. Brienne Minor | 6-3, 6-2 | | match details |
| Baton Rouge - Hard | ||||
| 21.06.18 2nd round | vs. Paige Mary Hourigan | 6-75, 6-4, 2-6 | | match details |
| 20.06.18 1st round | vs. Jade Lewis | 6-1, 7-64 | | match details |
| 19.06.18 qual. | vs. Francesca Fusinato | 6-2, 6-4 | | match details |
| 19.06.18 q 2 | vs. Gianna Pielet | 6-3, 6-4 | | match details |
| 18.06.18 q 1 | vs. Ashley Weinhold | 6-2, 6-4 | | match details |
| Sumter - Hard | ||||
| 11.06.18 q 1 | vs. Gail Brodsky | 3-6, 2-6 | | match details |
| U.S. Open - Hard | ||||
| 07.09.17 3rd round | vs. Emiliana Arango | 6-4, 1-6, 2-6 | | match details |
| 05.09.17 2nd round | vs. Xinyu Wang | 3-6, 7-5, 6-4 | | match details |
| 04.09.17 1st round | vs. Monica Cappelletti | 6-2, 7-64 | | match details |
| New York - Hard | ||||
| 22.08.17 q 1 | vs. Su-Wei Hsieh | 6-3, 2-6, 6-73 | | match details |