| 26‑Aug‑2002 | US Open | Hard | Q1 | 265 | 161 | Martin Lee [GBR] d. Siemerink | 6-3 6-1 | | | | | | | | | |
| 15‑Jul‑2002 | Amersfoort | Clay | R32 | 254 | 87 | Kristian Pless [DEN] d. (WC)Siemerink | 6-2 7-6(1) | | 0.67 | 10.9% | 7.8% | 46.9% | 73.3% | 50.0% | 0/2 | 1:13 |
| 8‑Jul‑2002 | Scheveningen CH | Clay | R16 | 257 | 122 | (6)Alex Calatrava [ESP] d. (WC)Siemerink | 6-3 6-4 | | | | | | | | | |
| 8‑Jul‑2002 | Scheveningen CH | Clay | R32 | 257 | 452 | (WC)Siemerink d. (WC)Fred Hemmes [NED] | 6-4 6-4 | | | | | | | | | |
| 13‑May‑2002 | Valencia CH | Clay | R16 | 194 | 122 | (5)Alex Calatrava [ESP] d. Siemerink | 7-6(5) 6-2 | | | | | | | | | |
| 13‑May‑2002 | Valencia CH | Clay | R32 | 194 | | Siemerink d. (WC)David Villanueva Perez [ESP] | 6-4 6-0 | | | | | | | | | |
| 25‑Feb‑2002 | Hamburg CH | Carpet | R32 | 163 | 193 | (8)Jan Hernych [CZE] d. Siemerink | 7-6(2) 6-0 | | | | | | | | | |
| 18‑Feb‑2002 | Rotterdam | Hard | R32 | 169 | 33 | Ivan Ljubicic [CRO] d. (Q)Siemerink | 6-7(6) 7-6(6) 7-6(7) | | 0.90 | 5.0% | 5.0% | 61.4% | 79.1% | 51.9% | 6/7 | 2:59 |
| 4‑Feb‑2002 | Wroclaw CH | Hard | R16 | 142 | 57 | (7)Davide Sanguinetti [ITA] d. Siemerink | 4-6 6-1 6-2 | | | | | | | | | |
| 4‑Feb‑2002 | Wroclaw CH | Hard | R32 | 142 | 454 | Siemerink d. (Q)Dominique Coene [BEL] | 6-3 6-2 | | | | | | | | | |
| 21‑Jan‑2002 | Heilbronn CH | Carpet | R32 | 126 | 173 | Gianluca Pozzi [ITA] d. Siemerink | 6-2 6-4 | | | | | | | | | |