Jack Pienaar boxer
- bouts
- 20
- won
- 12
- lost
- 6
- draw
- 2
- Status
- inactive
- Division
- welterweight
- Debut
- 1931-12-23
- Height
- -
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- South Africa
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1940-06-15 | George Purchase | LLWWW | City Hall, Johannesburg | WIN Points |
| 1940-01-20 | Tiger Burns | LWWDWW | City Hall, Johannesburg | LOST Technical knockout |
| 1939-02-11 | Peter Potgieter | L | City Hall, Johannesburg | LOST Points |
| 1938-01-08 | Dicky Barton | debut | City Hall, Johannesburg | LOST Points |
| 1937-05-03 | Solly Kahn | LDLDLL | Town Hall, Springs | WIN Technical knockout |
| 1937-04-24 | Dan Bushney | LLL | City Hall, Johannesburg | DRAW Points |
| 1936-09-05 | Dan Bushney | debut | City Hall, Johannesburg | WIN Points |
| 1936-08-29 | Jan van der Walt | debut | City Hall, Johannesburg | WIN Points |
| 1936-08-01 | Tommy Bensch | debut | City Hall, Johannesburg | LOST Points |
| 1936-05-02 | Len Dray | DLLWLW | City Hall, Durban | WIN Points |
| 1934-08-18 | Doug Hammon | L | Wanderers Stadium, Johannesburg | WIN KO |
| 1933-05-20 | Solly Kahn | LLLLL | City Hall, Johannesburg | WIN Points |
| 1932-11-12 | Les van Rooyen | LWLWWW | City Hall, Johannesburg | LOST KO |
| 1932-11-03 | Jack Coetzee | WWLLLW | City Hall, Johannesburg | WIN Points |
| 1932-10-08 | Les van Rooyen | WLWLWW | City Hall, Johannesburg | LOST Corner retirement |
| 1932-08-20 | Bill Greyling | LLL | Town Hall, Brakpan | DRAW Points |
| 1932-07-23 | Alf Wilson | LLWDWL | Drill Hall, Johannesburg | WIN Points |
| 1932-06-04 | Kosie de Jongh | LLDW | City Hall, Johannesburg | WIN |
| 1932-04-30 | Harry Gadd | LWLLDL | City Hall, Johannesburg | WIN Points |
| 1931-12-23 | Charles van Rooyen | LLLDLW | City Hall, Johannesburg | WIN Points |