Full name: Johannes Jacobus "Joop" Rohner
Gender: Male
Born: July 6, 1927 in Amsterdam, Noord-Holland, Netherlands
Died: January 25, 2005 in Hobart, Tasmania, Australia
Affiliations: HZC de Robben, Hilversum (NED)
Country:
Netherlands
Sport: Water Polo
Medals: 1 Bronze (1 Total)
| Games | Age | City | Sport | Event | Team | NOC | Rank | Medal | |
|---|---|---|---|---|---|---|---|---|---|
| 1948 Summer | 21 | London | Water Polo | Men's Water Polo | Netherlands | NED | 3 | Bronze |
| Games | Age | City | Sport | Team | NOC | Phase | Unit | Rank | Date | Result | G |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1948 Summer | 21 | London | Water Polo | Netherlands | NED | Final Round | Match #1 | 1T | 1948-08-06 | NED 4, HUN 4 | 0 |
| 1948 Summer | 21 | London | Water Polo | Netherlands | NED | Final Round | Match #4 | 2 | 1948-08-07 | ITA 4, NED 2 | 0 |
| 1948 Summer | 21 | London | Water Polo | Netherlands | NED | Group A | Match #1 | 1T | 1948-08-04 | NED 3, BEL 3 | 0 |
| 1948 Summer | 21 | London | Water Polo | Netherlands | NED | Group A | Match #2 | 1 | 1948-08-05 | NED 5, SWE 3 | 0 |
| 1948 Summer | 21 | London | Water Polo | Netherlands | NED | Group C | Match #1 | 1 | 1948-07-30 | NED 12, IND 1 | 0 |