Club Kampioenschap Single 2021
| za 12/6 | HEB2 | P van Metelen | 1 | - | K de Jong | 0 | 6-3, 6-3 | |
| HEB2 | L Schrijvers | 1 | - | N Connor | 0 | 6-2, 7-5 | ||
| HEB4 | F Ysebaert | 1 | - | A de Jong | 0 | 6-4, 7-6 | ||
| HEB1 | W de Ruijter | 1 | - | N w Vos | 0 | 6-1, 6-3 | ||
| HEB1 | J Salentijn | 1 | - | A van den Beukel | 0 | 6-0, 6-2 | ||
| DEB1 | E Stubbe | 1 | - | J Griffith | 0 | 6-0, 6-0 | ||
| DEB2 | L Stuger | 1 | - | N Huijgen | 0 | 6-2, 6-2 | ||
| HEA1 | L Verdaasdonk | 1 | - | J Jansen | 0 | 6-4, 6-2 | ||
| HEA2 | G van Vliet | 1 | - | T Schellekens | 0 | 6-1, 6-3 | ||
| HEC2 | H Lips | 1 | - | P Goos | 0 | 6-1, 6-0 | ||
| HEC1 | Y Kalaf | 1 | - | E Nonnekes | 0 | 3-6, 6-2, 6-3 | ||
| zo 13/6 | HEB4 | R Hoogwout | 1 | - | F Ysebaert | 0 | 6-0, 7-5 | |
| HEB1 | A van den Beukel | 1 | - | N w Vos | 0 | w.o. | ||
| HEB1 | W de Ruijter | 1 | - | E van Vliet | 0 | 6-0, 6-1 | ||
| HEB3 | T van Elk | 1 | - | H Brillemans | 0 | 6-0, 6-0 | ||
| DEB1 | Y Wigleven | 1 | - | P Laan | 0 | 6-0, 7-5 | ||
| DEB2 | N Huijgen | 1 | - | L de Vrijer | 0 | 6-1, 6-0 | ||
| DEA1 | J Coerts | 1 | - | K van Vliet | 0 | 7-6, 4-6 opgegeven | ||
| HEA1 | R Hommes | 1 | - | A Post | 0 | 6-1, 6-0 | ||
| HEA1 | R Hommes | 1 | - | L Warren | 0 | 6-1, 6-1 | ||
| HEA2 | J Boekhoudt | 1 | - | T Schellekens | 0 | 4-6, 6-2, 6-2 | ||
| HEC1 | J Bouman | 1 | - | Y Kalaf | 0 | 6-1, 6-2 | ||
| ma 14/6 | HEB3 | C Kok | 1 | - | T van Elk | 0 | 5-7, 6-2, 6-3 | |
| DEB1 | E Stubbe | 1 | - | P Laan | 0 | 6-0, 6-2 | ||
| di 15/6 | HEB1 | J Salentijn | 1 | - | N w Vos | 0 | w.o. | |
| DEB1 | Y Wigleven | 1 | - | J Griffith | 0 | 6-0, 6-0 | ||
| DEA1 | T Verginie-Haring | 1 | - | K van Vliet | 0 | 6-1, 6-2 | ||
| HEA1 | L Warren | 1 | - | J Jansen | 0 | 6-2, 6-2 | ||
| HEA1 | R Hommes | 1 | - | L Verdaasdonk | 0 | 6-1, 6-3 | ||
| HEC1 | Y Kalaf | 1 | - | J Ligthart | 0 | 7-6, 6-2 | ||
| wo 16/6 | HEB2 | L Schrijvers | 1 | - | K de Jong | 0 | 6-1, 6-7, 6-2 | |
| HEB1 | E van Vliet | 1 | - | N w Vos | 0 | w.o. | ||
| HEB3 | M Uilen | 1 | - | T van Elk | 0 | 6-1, 6-3 | ||
| DEA1 | S van Keuk | 1 | - | K van Vliet | 0 | 7-6, 6-1 | ||
| HEA2 | T Schellekens | 1 | - | T Moraal | 0 | 6-4, 6-2 | ||
| do 17/6 | DEA1 | T Verginie-Haring | 1 | - | J Coerts | 0 | opgegeven | |
| vr 18/6 | DEB2 | L de Vrijer | 1 | - | M Douwens | 0 | 6-1, 6-2 | |
| za 19/6 | HEB2 | P van Metelen | 1 | - | N Connor | 0 | 7-6, 6-7, 7-6 | |
| HEB4 | R Hoogwout | 1 | - | S Omer | 0 | 6-0, 6-0 | ||
| HEB4 | A de Jong | 1 | - | D'Angelo Verginie | 0 | 6-3, 6-0 | ||
| HEB1 | E van Vliet | 1 | - | A van den Beukel | 0 | w.o. | ||
| HEB1 | J Salentijn | 1 | - | E van Vliet | 0 | 6-0, 6-0 | ||
| HEB3 | J Koomen | 1 | - | H Brillemans | 0 | 6-1, 6-1 | ||
| HEB3 | M Uilen | 1 | - | C Kok | 0 | 6-1, 6-2 | ||
| DEB1 | J Clein | 1 | - | Y Wigleven | 0 | 6-4, 6-2 | ||
| DEB2 | S Witkamp | 1 | - | L de Vrijer | 0 | 7-5, 6-4 | ||
| DEB2 | L Stuger | 1 | - | M Douwens | 0 | 6-1, 6-0 | ||
| HEA1 | L Verdaasdonk | 1 | - | L Warren | 0 | 6-2, 6-2 | ||
| HEC2 | M Hagen | 1 | - | P Goos | 0 | 6-2, 6-3 |
