| US Open | 09/03 01:15 | 25 | [25] Nick Kyrgios v Jeffrey John Wolf [87] | 6-4,6-2,6-3 | |
| US Open | 08/31 19:30 | 24 | [71] Alejandro Tabilo v Jeffrey John Wolf [87] | 6-4,5-7,4-6,3-6 | |
| US Open | 08/29 15:00 | 23 | [87] Jeffrey John Wolf v Roberto Bautista-Agut [18] | 6-4,6-4,6-4 | |
| ATP - Winston-Salem | 08/22 23:00 | 24 | [231] Dominic Thiem v Jeffrey John Wolf [87] | 6-7,7-5,7-6 | |
| ATP - Cincinnati | 08/15 16:55 | 24 | [44] Emil Ruusuvuori v Jeffrey John Wolf [83] | 7-6,6-2 | |
| ATP - Washington | 08/06 00:15 | 27 | [8] Andrey Rublev v Jeffrey John Wolf [99] | 6-2,6-3 | |
| ATP - Washington | 08/05 16:00 | 26 | [28] Holger N Rune v Jeffrey John Wolf [99] | 5-7,6-4,3-6 | |
| ATP - Washington | 08/03 20:25 | 25 | [99] Jeffrey John Wolf v Denis Shapovalov [22] | 6-2,6-7,6-3 | |
| ATP - Washington | 08/01 18:45 | 24 | [99] Jeffrey John Wolf v Taro Daniel [94] | 6-2,6-3 | |
| ATP - Atlanta | 07/23 19:20 | 26 | Donald Young v Jeffrey John Wolf | Retired | |
| Challenger - Indianapolis | 07/19 15:25 | 25 | [105] Jeffrey John Wolf v Billy Harris [322] | 4-6,7-6,6-7 | |
| Challenger - Indianapolis | 07/18 21:30 | 25 | Jeffrey John Wolf v Andrew Harris | Cancelled | |
| Challenger - Rome GA | 07/15 15:00 | 27 | [329] Yibing Wu v Jeffrey John Wolf [111] | 6-4,6-1 | |
| Challenger - Rome GA | 07/13 15:20 | 26 | [360] Shintaro Mochizuki v Jeffrey John Wolf [111] | 3-6,6-7 | |
| Challenger - Rome GA | 07/12 15:30 | 25 | [374] Juncheng Shang v Jeffrey John Wolf [111] | 1-6,2-6 | |
| Challenger - Orlando | 06/11 15:00 | 28 | [133] Jeffrey John Wolf v Jason Kubler [119] | 1-6,3-6 | |
| Challenger - Orlando | 06/10 15:00 | 27 | [133] Jeffrey John Wolf v Tung-Lin Wu [214] | 4-6,6-3,6-2 | |
| Challenger - Orlando | 06/08 16:25 | 26 | [133] Jeffrey John Wolf v Brandon Holt [350] | 7-5,3-6,6-3 | |
| Challenger - Orlando | 06/07 16:35 | 25 | Jeffrey John Wolf v Martin Damm | 6-3,6-1 | |
| Challenger - Little Rock | 05/30 23:00 | 25 | [126] Jeffrey John Wolf v Aleksandar Kovacevic [348] | 2-6,7-5,4-6 | |
| Challenger - Savannah | 04/30 17:45 | 28 | [307] Christian Harrison v Jeffrey John Wolf [142] | 6-1,6-3 | |
| Challenger - Savannah | 04/29 20:00 | 27 | [373] Alex Rybakov v Jeffrey John Wolf [142] | 3-6,4-6 | |
| Challenger - Savannah | 04/28 15:00 | 26 | [170] Jason Kubler v Jeffrey John Wolf [142] | 3-6,6-2,2-6 | |
| Challenger - Savannah | 04/26 17:40 | 25 | [183] Ramkumar Ramanathan v Jeffrey John Wolf [142] | 6-7,0-6 | |
| Challenger - Tallahassee | 04/22 16:45 | 27 | [145] Jeffrey John Wolf v Zhizhen Zhang [296] | 3-6,6-3,6-7 | |
| Challenger - Tallahassee | 04/21 15:00 | 26 | [145] Jeffrey John Wolf v Alexander Ritschard [210] | 7-6,6-3 | |
| Challenger - Tallahassee | 04/19 16:55 | 25 | [145] Jeffrey John Wolf v Daniel Dutra Da Silva [283] | 7-6,5-7,6-2 | |
| Challenger - Sarasota | 04/15 19:00 | 27 | [151] Jeffrey John Wolf v Alejandro Tabilo [97] | 1-6,4-6 | |
| Challenger - Sarasota | 04/14 18:00 | 26 | [323] Alexis Galarneau v Jeffrey John Wolf [151] | 1-6,2-6 | |
| Challenger - Sarasota | 04/12 19:40 | 25 | [151] Jeffrey John Wolf v Aleksandar Kovacevic [374] | 6-2,6-7,6-3 |
Wikipedia - J.J. Wolf
Jeffrey John "J.J." Wolf (født 21. december 1998 i Indian Hill, Ohio, USA) er en professionel tennisspiller fra USA.