 USA: W100 Midland - Singles - Main |
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| 1/16-finals | Karatantcheva S. | Frenkel N. | 2:0 (6:4, 6:3) | details | 01.02.2017 |
 Canada: Toronto - Singles - Main |
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| Quarter-finals | Frenkel N. | Maleckova J. | 0:2 (1:6, 2:6) | details | 04.11.2016 |
| 1/8-finals | Frenkel N. | Zarazua R. | 2:1 (4:6, 6:4, 7:64) | details | 02.11.2016 |
| 1/16-finals | Albanese L. | Frenkel N. | 1:2 (4:6, 6:4, 4:6) | details | 31.10.2016 |
| USA: Albuquerque - Singles - Main |
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| 1/16-finals | Frenkel N. | Kania-Chodun P. | 0:2 (1:6, 2:6) | details | 21.09.2016 |
| USA: US Open - Singles - Main |
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| 1/32-finals | Frenkel N. | Ong V. | 1:2 (3:6, 7:5, 4:6) | details | 05.09.2016 |
| 1/32-finals | Frenkel N. | Masarova R. | CAN. | details | 05.09.2016 |
| USA: US Open - Singles - Qualification |
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| Quarter-finals | Frenkel N. | Soylu I. | 0:2 (4:6, 1:6) | details | 24.08.2016 |
 Mexico: Acapulco - Singles - Qualification |
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| Semi-finals | Radwanska U. | Frenkel N. | 2:0 (6:3, 6:2) | details | 21.02.2016 |
| USA: W60 Macon GA - Singles - Main |
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| 1/8-finals | Tatishvili A. | Frenkel N. | 2:0 (6:2, 6:3) | details | 29.10.2015 |
| 1/16-finals | Frenkel N. | Zacarias M. | 2:1 (5:7, 6:3, 6:2) | details | 28.10.2015 |
| USA: Lexington - Singles - Main |
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| Quarter-finals | Frenkel N. | Hibino N. | 0:2 (3:6, 1:6) | details | 31.07.2015 |
| 1/8-finals | Chang S. | Frenkel N. | 0:2 (3:6, 1:6) | details | 30.07.2015 |
| 1/16-finals | Cako J. | Frenkel N. | 1:2 (7:63, 3:6, 4:6) | details | 29.07.2015 |
| USA: Sacramento - Singles - Main |
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| 1/16-finals | Frenkel N. | Hibi M. | 0:2 (3:6, 3:6) | details | 22.07.2015 |
| USA: Charlottesville - Singles - Main |
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| 1/8-finals | Frenkel N. | Stewart K. | 0:2 (3:6, 0:6) | details | 30.04.2015 |
| 1/16-finals | Frenkel N. | Ianchuk O. | 2:0 (6:4, 6:3) | details | 29.04.2015 |
| USA: Buffalo - Singles - Main |
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| Semi-finals | Black T. A. | Frenkel N. | 2:0 (6:2, 6:0) | details | 30.06.2012 |
| Quarter-finals | Kukharchuk N. | Frenkel N. | 0:2 (3:6, 3:6) | details | 29.06.2012 |
| 1/8-finals | Murdock A. | Frenkel N. | 1:2 (6:0, 4:6, 2:6) | details | 28.06.2012 |
| 1/16-finals | Frenkel N. | Sanesi G. | 2:1 (7:5, 2:6, 6:2) | details | 27.06.2012 |