25‑Apr‑1958 | Davis Cup EUR R1: GER vs NED | | RR | | | Wilhelm Bungert [GER] d. Van Dalsum | 7-5 6-4 6-2 | | | | | | | | | |
18‑May‑1957 | Davis Cup EUR R2: NED vs ITA | Clay | RR | | | Nicola Pietrangeli [ITA] d. Van Dalsum | 6-1 6-1 6-1 | | | | | | | | | |
18‑May‑1957 | Davis Cup EUR R2: NED vs ITA | Clay | RR | | | Giuseppe Merlo [ITA] d. Van Dalsum | 6-8 6-2 10-8 6-3 | | | | | | | | | |
26‑Apr‑1957 | Davis Cup EUR R1: NED vs NOR | Clay | RR | | | Van Dalsum d. Gunnar Sjowall [NOR] | 6-2 4-6 6-2 4-6 6-3 | | | | | | | | | |
11‑May‑1956 | Davis Cup EUR R2: NED vs CHI | Clay | RR | | | Andres Hammersley [CHI] d. Van Dalsum | 8-6 6-4 6-2 | | | | | | | | | |
11‑May‑1956 | Davis Cup EUR R2: NED vs CHI | Clay | RR | | | Luis Ayala [CHI] d. Van Dalsum | 7-5 6-4 6-4 | | | | | | | | | |
27‑Apr‑1956 | Davis Cup EUR R1: TUR vs NED | | RR | | | Van Dalsum d. Sefik Fenmen [TUR] | 6-3 6-2 6-3 | | | | | | | | | |
27‑Apr‑1956 | Davis Cup EUR R1: TUR vs NED | | RR | | | Van Dalsum d. Nazmi Bari [TUR] | 0-6 6-3 6-4 8-6 | | | | | | | | | |
29‑Apr‑1955 | Davis Cup EUR R1: SUI vs NED | | RR | | | Martin Froesch [SUI] d. Van Dalsum | 6-0 6-1 6-4 | | | | | | | | | |