| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Walter•Middelberg |
| Used name | Walter•Middelberg |
| Born | 30 January 1875 in Zwolle, Overijssel (NED) |
| Died | 15 September 1944 (aged 69 years 7 months 16 days) in Zwolle, Overijssel (NED) |
| Affiliations | Njord, Leiden (NED) |
| NOC |  Netherlands |
| Medals | OG |
| Gold | 0 |
| Silver | 0 |
| Bronze | 1 |
| Total | 1 |
Walter Middelberg, a student of chemistry, was a crewman of the Minerva eight that competed at the 1900 Olympics and placed third.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1900 Summer Olympics | Rowing | NED |
Walter Middelberg | |||
| Eights, Men (Olympic) | Minerva Amsterdam | 3 | Bronze |
