Bill Nielsen boxer
- bouts
- 37
- won
- 22
- lost
- 12
- draw
- 3
- Status
- inactive
- Division
- heavyweight
- Debut
- 1960-06-13
- Height
- -
- Reach
- -
- Age
- -
- Born
- 1939-05-02
- Death
- -
- Nationality
- USA
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1967-10-03 | Boone Kirkman | WWWWLW | Memorial Coliseum, Portland | LOST Technical knockout |
| 1967-06-20 | Roy Rogers | LLWLLL | Waterloo Stadium , Waterloo | DRAW Points |
| 1966-10-20 | Jerry Quarry | WDWWDL | Olympic Auditorium, Los Angeles | LOST Unanimous decision |
| 1966-06-27 | Ben Black | WWDLL | Auditorium, Milwaukee | LOST Technical knockout |
| 1966-03-08 | Al Jones | LDWLLW | Convention Hall, Minneapolis | WIN Technical knockout |
| 1966-01-31 | Jack Bodell | WWWWWW | Colston Hall, Bristol | LOST Technical knockout |
| 1965-12-14 | Johnny Prescott | WDLLLW | The Stadium, Liverpool | LOST Points |
| 1965-09-21 | Ben Black | WW | City Auditorium, Omaha | DRAW Points |
| 1965-08-02 | Roberto Davila | LWLWLL | Hacienda Hotel, Las Vegas | LOST Corner retirement |
| 1965-04-19 | George Chuvalo | LWWWWL | Maple Leaf Gardens, Toronto | LOST Technical knockout |
| 1964-10-27 | Johnny Prescott | WWLWWD | Empire Pool, Wembley | WIN |
| 1964-05-12 | Billy Walker | WWWLWL | Empire Pool, Wembley | LOST KO |
| 1964-03-10 | Billy Walker | WWWWLW | Royal Albert Hall, Kensington | WIN Technical knockout |
| 1963-12-02 | Brian London | LWWWLW | New St James Hall, Newcastle | LOST KO |
| 1963-06-17 | Tom McNeeley | LLWWLL | City Auditorium, Omaha | LOST Technical knockout |
| 1963-04-21 | Joe Bygraves | WWLLLD | Johanneshov Ice Stadium, Stockholm | WIN Technical knockout |
| 1963-03-29 | Mariano Echevarria | WWLLWW | K.B. Hallen, Copenhagen | WIN Unanimous decision |
| 1962-11-29 | Tony Hughes | WWWLLW | City Auditorium, Omaha | LOST Split-decision |
| 1962-10-06 | Jerry Simms | WWWWWW | Madison Square Garden, New York | WIN Unanimous decision |
| 1962-09-20 | Ernie Cab | LLWWLL | City Auditorium, Omaha | WIN |
| 1962-06-12 | Jackie Richards | LWWWWW | City Auditorium, Omaha | WIN Technical knockout |
| 1962-04-19 | Lou Bailey | WWLWWL | City Auditorium, Omaha | WIN Split-decision |
| 1962-03-16 | Wayne Womochil | LDLLLL | City Auditorium, Omaha | WIN Points |
| 1962-02-22 | Don Quinn | WWWWWW | Auditorium, Minneapolis | WIN Majority decision |
| 1962-02-15 | Dave Benson | debut | Auditorium Arena, Denver | WIN Technical knockout |
| 1962-01-25 | Joe Lubert | LLLLWL | Auditorium, Minneapolis | WIN KO |
| 1961-12-08 | Wayne Womochil | LLDLLL | City Auditorium, Omaha | WIN Split-decision |
| 1961-10-17 | Chico Gardner | WDLLLL | City Auditorium, Omaha | WIN Technical knockout |
| 1961-09-18 | Joe Lubert | WLLLLW | Auditorium, Minneapolis | WIN Points |
| 1961-09-05 | Frank Williams | WLLDLL | City Auditorium, Omaha | WIN Technical knockout |
| 1961-08-11 | Joe Lubert | DDWLLL | City Auditorium, Omaha | WIN Split-decision |
| 1961-01-17 | Wayne Bethea | LLLWWL | City Auditorium, Omaha | LOST Technical knockout |
| 1960-12-13 | Wayne Womochil | WWDWLL | Civic Auditorium, Omaha | DRAW Points |
| 1960-10-20 | Sylvester Jones | LDWWWW | Wichita | WIN KO |
| 1960-09-09 | Wayne Heath | WWLWWL | Wichita | WIN KO |
| 1960-08-19 | Gilbert Rand | LWLL | Tulsa | WIN KO |
| 1960-06-13 | Randy Wyatt | WL | Wichita | WIN KO |