Stadium: B Round: 45
| Challenger Buenos Aires | 2017/03/18 14:00 | Leonardo Mayer v Tristan Lamasine | 6-1,6-1 |
| Challenger Bastad | 2017/07/11 12:20 | Tristan Lamasine v Henri Laaksonen | 1-6,4-6 |
| Wimbledon Qual | 2017/06/26 11:30 | Ruben Bemelmans v Tristan Lamasine | 3-6,6-1,6-3 |
| Challenger Blois | 2017/06/20 08:00 | Tristan Lamasine v Jonathan Eysseric | 6-3,4-6,4-6 |
| Challenger Lyon | 2017/06/17 12:10 | Tristan Lamasine v Mathias Bourgue | 2-6,1-6 |
| Challenger Lyon | 2017/06/16 13:00 | Horacio Zeballos v Tristan Lamasine | 7-5,5-7,4-6 |
| Challenger Lyon | 2017/06/15 09:00 | Tristan Lamasine v Cristian Garin | 6-1,6-4 |
| Challenger Lyon | 2017/06/13 09:35 | Tristan Lamasine v Cem Ilkel | 6-1,6-4 |
| Challenger Lyon Qual | 2017/06/12 10:25 | Tristan Lamasine v Axel Michon | 6-3,7-6 |
| Challenger Bastad | 2017/07/15 11:00 | Dusan Lajovic v Leonardo Mayer | 6-2,7-6 |
| Challenger Bastad | 2017/07/14 10:55 | Leonardo Mayer v Mikael Ymer | 6-3,6-0 |
| Challenger Bastad | 2017/07/13 09:00 | Leonardo Mayer v Henri Laaksonen | 3-6,6-3,6-2 |
| Challenger Bastad | 2017/07/12 11:55 | Leonardo Mayer v Filip Krajinovic | 7-6,6-3 |
| Challenger Bastad | 2017/07/10 11:00 | Casper Ruud v Leonardo Mayer | 6-3,6-7,4-6 |
| Challenger Vicenza | 2017/06/01 13:30 | Leonardo Mayer v Matteo Donati | 6-3,1-6,2-6 |
| Challenger Vicenza | 2017/05/30 11:50 | Leonardo Mayer v Inigo C Huegun | 6-4,7-6 |
| French Open Qual | 2017/05/24 10:30 | Reilly Opelka v Leonardo Mayer | 5-7,7-6,6-3 |