 
| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | Marius "Maas"•van der Feen | 
| Used name | Maas•van der Feen | 
| Born | 1 February 1888 in Smallingerland, Friesland (NED) | 
| Died | 10 March 1973 in Den Haag (The Hague), Zuid-Holland (NED) | 
| NOC |  Netherlands | 
Maas van der Feen was Dutch singles champion in 1913-14, 1918, and 1924, and he won the Dutch men’s doubles title in 1913. He played at Wimbledon in 1925 and 1926, making the quarter-finals in singles in 1925. Van der Feen played one tie in the 1923 Davis Cup for the Netherlands, losing both his singles matches. He later became a board member of the Dutch Lawn Tennis Association, and eventually was made an honorary member.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1924 Summer Olympics | Tennis |  NED | Maas van der Feen | |||
| Singles, Men (Olympic) | =33 | |||||
| Doubles, Men (Olympic) | Gerard Leembruggen | =29 |