Stadium: Chris Cammisa Court Round: 27 Ground: Hardcourt outdoor
| Challenger Meerbusch Qual | 2018/08/12 08:00 | Yshai Oliel v Sebastian Fanselow | 6-4,6-2 |
| Challenger Meerbusch Qual | 2018/08/11 08:00 | Javier Barranco Cosano v Sebastian Fanselow | 7-5,4-6,4-6 |
| Challenger Pullach Qual | 2018/08/04 13:45 | Andreas Haider-Maurer v Sebastian Fanselow | 6-3,7-5 |
| ITF Italy F18 | 2018/07/13 17:20 | Jelle Sels v Sebastian Fanselow | 6-4,6-2 |
| ITF Italy F18 | 2018/07/12 11:50 | Sebastian Fanselow v Matias Zukas | 6-1,3-6,6-3 |
| ITF Italy F18 | 2018/07/11 09:30 | Sebastian Fanselow v Lorenzo Frigerio | 6-1,6-2 |
| ITF Italy F18 | 2018/07/10 13:05 | Sebastian Fanselow v Filippo Leonardi | 6-3,6-3 |
| Challenger Milan Qual | 2018/06/24 14:30 | Sebastian Fanselow v Alexei Popyrin | 5-7,5-7 |
| US Open | 2018/08/24 16:15 | Daniel Elahi Galan v Casper Ruud | 5-7,2-6 |
| US Open | 2018/08/23 18:50 | Max Purcell v Casper Ruud | 6-7,5-7 |
| US Open | 2018/08/22 15:00 | Andrea Arnaboldi v Casper Ruud | 2-6,2-6 |
| Challenger Pullach | 2018/08/07 11:35 | Tim Puetz v Casper Ruud | 6-2,3-6,7-6 |
| Challenger Sopot | 2018/07/31 08:00 | Casper Ruud v Artem Smirnov | 2-6,6-1,5-7 |
| ATP Hamburg | 2018/07/23 09:00 | Casper Ruud v Diego Schwartzman | 4-6,6-2,2-6 |
| ATP Bastad | 2018/07/20 12:30 | Richard Gasquet v Casper Ruud | 7-6,6-2 |
| ATP Bastad | 2018/07/19 13:20 | Casper Ruud v David Ferrer | 7-5,6-2 |