| Challenger Skopje | 05/25 10:40 | 29 | 마이치르자크, 카밀 v Joel Schwaerzler | 3-6,3-6 | |
| Challenger Skopje | 05/24 11:35 | 28 | Gerard Campana Lee v Joel Schwaerzler | 7-6,3-6,2-6 | |
| Challenger Skopje | 05/23 09:00 | 27 | 파울슨, 안드루 v Joel Schwaerzler | 6-3,4-6,4-6 | |
| Challenger Skopje | 05/22 10:10 | 26 | Joel Schwaerzler v 키르킨, 이어지 | 6-2,6-1 | |
| Challenger Skopje | 05/21 08:30 | 25 | Joel Schwaerzler v 포민, 세르게이 | Retired | |
| Mauthausen, Austria | 05/10 10:00 | 27 | Joel Schwaerzler v 쿠즈마노브, 디미탈 | 2-6,3-6 | |
| Mauthausen, Austria | 05/09 11:00 | 26 | Martin Landaluce v Joel Schwaerzler | 4-6,2-6 | |
| Mauthausen, Austria | 05/07 11:40 | 25 | 로센크란즈, 매츠 v Joel Schwaerzler | 6-7,4-6 | |
| Challenger Savannah | 04/25 21:30 | 26 | Joel Schwaerzler v 헤메리, 칼빈 | 4-6,2-6 | |
| Challenger Savannah | 04/23 21:45 | 25 | J.J. Wolf v Joel Schwaerzler | 2-6,1-6 | |
| Challenger Tallahassee | 04/19 21:30 | 27 | Joel Schwaerzler v 크루에겔, 미트첼 | 5-7,6-7 | |
| Challenger Tallahassee | 04/17 15:00 | 26 | Henry Searle v Joel Schwaerzler | 1-6,6-7 | |
| Challenger Tallahassee | 04/15 21:30 | 25 | 포니오, 기오바니 v Joel Schwaerzler | 2-6,4-6 | |
| Challenger Sarasota | 04/09 15:00 | 25 | Joel Josef Schwarzler v 보이엘, 트리스탄 | 2-6,6-4,5-7 | |
| ITF M15 Antalya | 03/24 07:30 | 29 | Filip Cristian Jianu v Joel Schwaerzler | 6-1,6-2 | |
| ITF M15 Antalya | 03/23 07:30 | 28 | Joel Schwaerzler v 기마, 세바스티안 | 7-5,6-1 | |
| ITF M15 Antalya | 03/22 10:05 | 27 | Justin Engel v Joel Schwaerzler | 1-6,0-6 | |
| ITF M15 Antalya | 03/21 11:00 | 26 | 페라리, 프란세스코 v Joel Schwaerzler | 2-6,0-6 | |
| ITF M15 Antalya | 03/20 15:45 | 25 | Joel Schwaerzler v 클로크, 데니스 | 6-3,6-3 | |
| ITF M15 Antalya | 03/15 08:00 | 27 | 페라리, 프란세스코 v Joel Schwaerzler | 6-4,3-6,6-1 | |
| ITF M15 Antalya | 03/14 07:30 | 26 | Joel Schwaerzler v 코르윈, 펠릭스 | 7-5,6-3 | |
| ITF M15 Antalya | 03/13 06:50 | 25 | Mouilleron Salvo, Manuel v Joel Schwaerzler | 1-6,2-6 | |
| ITF M15 Monastir | 02/23 10:55 | 27 | Joel Schwaerzler v Matej Dodig | 3-6,6-3,3-6 | |
| ITF M15 Monastir | 02/22 10:55 | 26 | Joel Schwaerzler v 펜티, 안드루 | 6-1,6-4 | |
| ITF M15 Monastir | 02/20 08:30 | 25 | Lorenzo Carboni v Joel Schwaerzler | 1-6,4-6 | |
| ITF M15 Monastir | 02/14 08:30 | 25 | Joel Schwaerzler v 두신, 루이스 | 4-6,4-6 | |
| ITF M15 Monastir | 02/08 08:30 | 26 | Simakin, Ilia v Joel Schwaerzler | 7-6,2-6,7-5 | |
| ITF M15 Monastir | 02/07 08:30 | 25 | Joel Schwaerzler v 타바코, 파우스토 | 6-4,6-3 | |
| ITF M15 Heraklion | 11/21 11:55 | 25 | 그레이, 알라스타일 v Joel Schwaerzler | 6-3,6-3 | |
| ITF M15 Heraklion | 11/16 08:00 | 26 | Joel Schwaerzler v 기마, 세바스티안 | 6-3,4-6,1-6 |