Career
Throughout his career he played for only one province, Northern Transvaal. Geldenhuys played 184 matches for Northern Transvaal and also captained his province 54 times.
In total, he played in seven tests for the Springboks and scored one try. His first test was as flanker on 29 August 1981 against the All Blacks at Athletic Park, Wellington. His seventh and final test occurred on 2 September 1989 against a World XV side at Ellis Park, Johannesburg.
Test history
| No. | Opposition | Result (SA 1st) | Position | Tries | Date | Venue |
|---|---|---|---|---|---|---|
| 1. |  New Zealand |
24–12 | Flank | 29 August 1981 | Athletic Park, Wellington | |
| 2. | New Zealand |
22–25 | Flank | 12 September 1981 | Eden Park, Auckland | |
| 3. |  United States |
38–7 | Flank | 1 | 20 September 1981 | Owl Creek Polo ground, Glenville, New York |
| 4. |  South American Jaguars |
50–18 | Flank | 27 March 1982 | Loftus Versveld, Pretoria | |
| 5. | South American Jaguars |
12–21 | Flank | 3 April 1982 | Free State Stadium, Bloemfontein | |
| 6. | World XV | 20–19 | Flank | 26 August 1989 | Newlands, Cape Town | |
| 7. | World XV | 22–16 | Flank | 2 September 1989 | Ellis Park, Johannesburg |