J. Roelfsema
Netherlands
| Sport | Speed Skating | |
| NOC | Netherlands | |
| Gender | Men |
| Championships results | Year | Competition | Event | Rank | ||
|---|---|---|---|---|---|---|
|
Championships results
|
||||||
| 1924/1925 | European Championships | Allround | 5 | |||
Netherlands| Sport | Speed Skating | |
| NOC | Netherlands | |
| Gender | Men |
| Championships results | Year | Competition | Event | Rank | ||
|---|---|---|---|---|---|---|
|
Championships results
|
||||||
| 1924/1925 | European Championships | Allround | 5 | |||