Stadium: Stadium Round: 23 Ground: Hardcourt outdoor
| Wimbledon | 2016/06/28 14:40 | Donald Young v Leonardo Mayer | 6-4,7-5,3-6,6-3 |
| ATP Indian Wells | 2018/03/15 00:50 | Juan Martin Del Potro v Leonardo Mayer | 3-6,7-6,6-3 |
| ATP Indian Wells | 2018/03/13 19:40 | Leonardo Mayer v Taro Daniel | 6-4,6-1 |
| ATP Indian Wells | 2018/03/11 21:20 | Ruben Bemelmans v Leonardo Mayer | 4-6,1-6 |
| ATP Indian Wells | 2018/03/11 21:00 | Kei Nishikori v Leonardo Mayer | View |
| ATP Indian Wells | 2018/03/10 01:35 | Leonardo Mayer v Victor Estrella Burgos | 4-6,6-4,6-1 |
| ATP Sao Paulo | 2018/03/02 15:30 | Leonardo Mayer v Pablo Cuevas | 2-6,7-6,6-7 |
| ATP Sao Paulo | 2018/02/28 15:30 | Leonardo Mayer v Carlos Berlocq | 7-5,6-4 |
| ATP Sao Paulo | 2018/02/26 19:45 | Leonardo Mayer v Gastao Elias | 5-7,7-6,7-6 |
| ATP Indian Wells | 2018/03/08 21:25 | Borna Coric v Donald Young | 6-0,6-2 |
| ATP Acapulco | 2018/02/27 23:40 | Hyeon Chung v Donald Young | 7-6,6-1 |
| ATP Delray Beach | 2018/02/21 17:00 | Evgeny Donskoy v Donald Young | 7-6,6-3 |
| ATP Delray Beach | 2018/02/19 20:55 | Ramkumar Ramanathan v Donald Young | 1-6,2-6 |
| ATP New York | 2018/02/13 00:30 | Ryan Harrison v Donald Young | 6-3,7-6 |
| Australian Open | 2018/01/16 04:00 | Novak Djokovic v Donald Young | 6-1,6-2,6-4 |
| ATP Auckland | 2018/01/07 23:30 | Donald Young v Joao Sousa | 7-6,4-6,2-6 |
| ATP Basel | 2017/10/25 15:35 | Donald Young v Julien Benneteau | 4-6,2-6 |