| Challenger - Nonthaburi | 01/20 03:30 | 28 | [171] Matteo Gigante v Jason Jung [260] | 6-3,7-5 | |
| Challenger - Nonthaburi | 01/19 05:10 | 27 | [195] Ryan Peniston v Jason Jung [260] | 4-6,3-6 | |
| Challenger - Nonthaburi | 01/17 03:30 | 26 | [260] Jason Jung v Aziz Dougaz [230] | 6-4,7-6 | |
| Challenger - Nonthaburi | 01/15 08:35 | 25 | [497] Maximus Jones v Jason Jung [260] | 2-6,1-6 | |
| Challenger - Nonthaburi | 01/10 05:00 | 26 | [323] Manuel Guinard v Jason Jung [242] | 6-1,7-6 | |
| Challenger - Nonthaburi | 01/09 06:15 | 25 | [371] Nick Hardt v Jason Jung [242] | 4-6,2-6 | |
| Challenger - Yokohama | 11/20 07:45 | 25 | [242] Jason Jung v Yuta Shimizu [249] | 4-6,5-7 | |
| Challenger - Kobe | 11/17 03:15 | 27 | [230] Tung-Lin Wu v Jason Jung [242] | 6-4,6-3 | |
| Challenger - Kobe | 11/16 02:00 | 26 | [362] Yunseong Chung v Jason Jung [242] | Retired | |
| Challenger - Kobe | 11/14 03:15 | 25 | [242] Jason Jung v Zdenek Kolar [179] | 6-4,7-6 | |
| Challenger - Matsuyama | 11/07 01:00 | 25 | [230] Jason Jung v Yuta Shimizu [252] | 4-6,6-2,4-6 | |
| ATP - Tokio | 10/14 06:35 | 14 | [97] Taro Daniel v Jason Jung [235] | 6-7,6-3,6-3 | |
| Challenger - Shenzhen | 10/13 04:40 | 27 | [235] Jason Jung v Pedro Cachin [71] | 3-6,4-6 | |
| Challenger - Shenzhen | 10/12 03:40 | 26 | [139] James Duckworth v Jason Jung [235] | 6-3,5-7,2-6 | |
| Challenger - Shenzhen | 10/10 07:00 | 25 | [235] Jason Jung v Evgeny Donskoy [233] | 6-4,2-6,6-4 | |
| ATP - Shanghai | 10/02 11:00 | 14 | [302] Beibit Zhukayev v Jason Jung [232] | 4-6,6-3,6-3 | |
| Challenger - Zhangjiagang | 08/29 08:00 | 25 | Jie Cui v Jason Jung | Cancelled | |
| Challenger - Zhuhai | 08/26 08:10 | 29 | [386] Arthur Weber v Jason Jung [256] | 6-3,5-7,6-3 | |
| Challenger - Zhuhai | 08/25 04:30 | 28 | Zhe Li v Jason Jung | 6-7,1-6 | |
| Challenger - Zhuhai | 08/24 03:00 | 27 | [403] Robert Strombachs v Jason Jung [256] | 4-6,2-6 | |
| Challenger - Zhuhai | 08/23 06:30 | 26 | [446] Fajing Sun v Jason Jung [256] | 3-6,6-3,6-7 | |
| Challenger - Zhuhai | 08/22 08:50 | 25 | Yan Bai v Jason Jung | 2-6,3-6 | |
| Challenger - Stanford | 08/14 19:15 | 25 | [167] Dalibor Svrcina v Jason Jung [258] | 6-4,6-2 | |
| Challenger - Stanford | 08/13 18:45 | 19 | Jason Jung v Keegan Smith | 5-7,6-4,6-1 | |
| Challenger - Stanford | 08/12 20:05 | 14 | Jason Jung v Abraham Asaba | 6-1,6-2 | |
| Challenger - Stanford | 08/12 19:40 | 14 | Jason Jung v Donald Young | Cancelled | |
| ATP - Los Cabos | 08/03 02:20 | 26 | [16] Borna Coric v Jason Jung [276] | 6-1,6-2 | |
| ATP - Los Cabos | 08/02 01:00 | 25 | [276] Jason Jung v Ernesto Escobedo [377] | 3-6,7-6,6-2 | |
| ATP - Los Cabos | 07/31 02:50 | 19 | [398] Omni Kumar v Jason Jung [281] | 6-4,4-6,7-6 | |
| ATP - Los Cabos | 07/30 04:00 | 14 | [452] Alexandr Cozbinov v Jason Jung [281] | 0-6,1-6 |
Wikipedia - Jason Jung
Jason Jung (Standaardmandarijn: 莊吉生, hanyu pinyin: Zhuāng Jíshēng) (Torrance, 15 juni 1989) is een Amerikaans tennisser van Taiwanese afkomst. Sinds 2015 komt hij uit voor Chinees Taipei. Hij stond viermaal in de finale van een ATP-toernooi in het enkelspel, waarvan hij er één won. Hij won één keer een ATP Challenger-toernooi in het dubbelspel. Hij heeft drie challengers in het enkelspel op zijn naam staan. Jung speelde zijn eerste wedstrijd op grandslamniveau op Wimbledon 2018. Als lucky loser verloor hij in de eerste ronde in drie sets van de Fransman Benoît Paire.