Stadium: Court 1 Round: 54 Ground: Clay
| ITF M25 Jablonec Nad Nisou | 2021/05/16 10:00 | Lukas Velik v 제니케크, 지리 | 4-6,0-6 |
| ITF M25 Budapest | 2021/09/29 07:25 | Mark Havlicek v Karol, Milos | 2-6,7-6,4-6 |
| ITF M25 Budapest | 2021/09/27 14:25 | Mark Havlicek v 리에더, 호스트 | 6-4,6-2 |
| ITF M25 Budapest | 2021/09/26 11:00 | Mark Havlicek v 카투치, 야쿠브 | 6-2,6-4 |
| ITF M25 Pardubice | 2021/09/23 07:30 | Mark Havlicek v 네제들리, 파벨 | 6-7,6-7 |
| ITF M25 Pardubice | 2021/09/21 09:30 | 핸델, 팀 v Mark Havlicek | 7-5,6-1 |
| ITF M25 Pardubice | 2021/09/20 10:00 | 호라크, 비테크 v Mark Havlicek | 6-7,3-6 |
| ITF M25 Ricany | 2021/08/31 08:00 | 포레지텍, 조나스 v Mark Havlicek | 6-2,6-1 |
| ITF M25 Ricany | 2021/08/30 10:00 | Mark Havlicek v 스큐에즈, 카스팔 | 6-1,6-2 |