John Brennan (The Don) boxer
- bouts
- 22
- won
- 13
- lost
- 6
- draw
- 2
- Status
- active
- Division
- super welterweight
- Debut
- 2010-06-19
- Height
- 5′ 11½″/181cm
- Reach
- -
- Age
- 33
- Born
- 1985-08-16
- Death
- -
- Nationality
- United Kingdom
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2021-11-27 | Craig Sumner | WLLL | Bracknell Leisure Centre, Bracknell | WIN Points |
| 2020-10-16 | Nicolaus Michael Mdoe | LWLWWW | Keko Mabembeani Ground, Dar-Es-Salaam | LOST Technical knockout |
| 2019-11-30 | Luke Middleton | LLLLLL | Magnet Leisure Centre, Maidenhead | LOST Points |
| 2019-06-29 | Sean Robinson | WWWWWW | York Hall, Bethnal Green | DRAW Points |
| 2019-02-02 | Andrej Moravek | WLLDWL | York Hall, Bethnal Green | WIN Technical knockout |
| 2018-10-06 | Victor Edagha | LLLLLL | Maidstone Leisure Centre, Maidstone | WIN Points |
| 2018-05-19 | Geiboord Omier | LLLLLL | Woodside Leisure Centre, Watford | WIN Points |
| 2018-04-06 | Andrei Hramyka | LLLLLL | Thistle Hotel, Heathrow | WIN KO |
| 2017-04-15 | Sonny Whiting | LWLLLL | Tolworth Recreation Centre, Tolworth | NC No Contest |
| 2017-02-18 | Asinia Byfield | WWWLWW | York Hall, Bethnal Green | LOST Technical knockout |
| 2016-10-29 | Casey Blair | LLLLLL | Tolworth Recreation Centre, Tolworth | WIN Points |
| 2016-04-30 | Deividas Sajauka | LWLLLL | York Hall, Bethnal Green | WIN Points |
| 2015-10-17 | Stanislav Nenkov | WLLWLL | The Centre, Farnham Road, Slough | WIN Points |
| 2015-05-09 | Ahmet Patterson | WWWWWW | Wembley Arena, Wembley | LOST KO |
| 2015-03-28 | Anthony Fitzgerald | WLLWWL | Evoque Nightclub, Church Street, Preston | LOST Points |
| 2014-05-17 | Lewis Scott | WWW | Gateshead Leisure Centre, Gateshead | LOST Technical knockout |
| 2014-03-15 | Kevin McCauley | LDLLLL | Rivermead Leisure Centre, Reading | WIN Technical knockout |
| 2013-10-05 | Glenn Foot | WWWWWW | O2 Arena, Greenwich | LOST Points |
| 2013-06-02 | Harjinder Gill | LL | The Centre, Farnham Road, Slough | WIN Technical knockout |
| 2012-04-28 | Duncan Cottier | LLLLLL | Montem Leisure Centre, Slough | WIN Points |
| 2011-02-19 | Ideh Ochuko | WLW | Tolworth Recreation Centre, Tolworth | WIN Points |
| 2010-06-19 | Chris Brophy | LLLLLL | York Hall, Bethnal Green | DRAW Points |