Jan Maas boxer
- bouts
- 30
- won
- 16
- lost
- 11
- draw
- 3
- Status
- inactive
- Division
- featherweight
- Debut
- 1949-03-09
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1925-10-27
- Death
- -
- Nationality
- Netherlands
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1953-11-25 | Henk Klok | WWWWWW | Apollohal, Amsterdam | LOST KO |
| 1953-10-20 | Henk Klok | WDWWWW | Apollohal, Amsterdam | LOST Points |
| 1953-10-06 | Ludwig Petri | WLLLWL | Rivièrahal, Rotterdam | LOST Points |
| 1953-06-01 | Edouard Werner | LLWDLL | Gebouw Emporium, Rotterdam | WIN KO |
| 1953-01-27 | Jean Machterlinck | LLWLLL | Charleroi | LOST Technical knockout |
| 1952-10-14 | Sammy McCarthy | WWWWWW | Streatham Ice Rink, Streatham | LOST Technical knockout |
| 1952-09-22 | Alois Meskens | debut | Rivièrahal, Rotterdam | LOST Points |
| 1952-07-26 | Hans Schoemig | LLDWWD | Sportpalast, Schoeneberg | DRAW Points |
| 1952-05-12 | Marcel Scherens | WWWDL | Rivièrahal, Rotterdam | WIN Points |
| 1952-04-01 | Eugene Servais | LDWWWL | Ahoy'-hal, Rotterdam | WIN Points |
| 1951-11-25 | Michel Dicky | LWLWLL | Veurne | DRAW Points |
| 1951-11-06 | Jan Nicolaas | WLDLWL | Concertgebouw, Amsterdam | LOST Points |
| 1951-10-22 | Lou Jacobs | WLLLDL | Rivièrahal, Rotterdam | WIN Points |
| 1951-05-17 | Pierre Gress Gyde | W | Feestgebouw Bellevue, Amsterdam | WIN Points |
| 1951-03-11 | Louis Cabo | LLLWDL | Denain | LOST Points |
| 1951-02-20 | Theo Nolten | LLLWLL | Ahoy'-hal, Rotterdam | WIN Points |
| 1950-11-20 | Theo Nolten | LLLLLW | Haagsche Zoo, Den Haag | WIN Points |
| 1950-09-19 | Andre Piens | WWLDW | Ahoy'-hal, Rotterdam | WIN Points |
| 1950-03-31 | Hannes Schneider | WWLLWL | Theater Carré, Amsterdam | LOST Points |
| 1950-03-20 | Andre Piens | WWL | Rivièrahal, Rotterdam | DRAW Points |
| 1950-01-22 | Michel Dicky | WWWW | Veurne | LOST Points |
| 1950-01-09 | Hannes Schneider | LWWLLW | Hotel Krasnapolsky, Amsterdam | WIN Points |
| 1949-12-20 | Jack Swevels | LLDLLL | Haagsche Zoo, Den Haag | WIN Points |
| 1949-11-28 | Nol Klein | LLLLDL | Hotel Krasnapolsky, Amsterdam | WIN KO |
| 1949-10-31 | Robert Tartari | debut | Rivièrahal, Rotterdam | WIN KO |
| 1949-06-02 | Hannes Schneider | WWWDWL | Apollohal, Amsterdam | LOST Points |
| 1949-05-16 | Jan Loos | debut | Rivièrahal, Rotterdam | WIN Technical knockout |
| 1949-05-10 | Theo Nolten | LWLLLL | Apollohal, Amsterdam | WIN Points |
| 1949-03-28 | Henk de Bruin | LLLLLL | Rivièrahal, Rotterdam | WIN Points |
| 1949-03-09 | Hannes Schneider | WWWWDW | Hotel Krasnapolsky, Amsterdam | WIN Points |
