George Kostelac (Kid Hockers/Castillon) boxer
- bouts
- 25
- won
- 10
- lost
- 13
- draw
- 1
- Status
- inactive
- Division
- heavyweight
- Debut
- 1936-04-15
- Height
- 6′ 4″/193cm
- Reach
- -
- Age
- -
- Born
- -
- Death
- -
- Nationality
- USA
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1944-01-17 | Bob Harris | LWLW | Coliseum, Baltimore | LOST KO |
| 1943-09-30 | Felix Del Paoli | WWLLLL | Olympia A.C., Philadelphia | LOST KO |
| 1943-09-24 | Jim Robinson | LLLLLL | Municipal Auditorium, Norfolk | LOST KO |
| 1943-06-07 | Gus Jones | WLWWW | Coliseum, Baltimore | WIN Points |
| 1943-05-17 | Leon Ford | WLDLLL | Coliseum, Baltimore | WIN Unanimous decision |
| 1943-05-03 | Dan Biggers | LLLLLL | Coliseum, Baltimore | WIN Points |
| 1943-03-24 | Dan Biggers | WLLLLL | Madrid Palestra, Harrisburg | WIN Points |
| 1943-03-04 | Ben Brown | LWLWLL | Olympia A.C., Philadelphia | LOST KO |
| 1943-02-25 | Dan Biggers | WWWLLL | Olympia A.C., Philadelphia | WIN KO |
| 1941-07-14 | Frank Donofrio | LLLLLL | T & C Arena, Wilmington | LOST Technical knockout |
| 1941-06-16 | Lou Brooks | WW | T & C Arena, Wilmington | LOST KO |
| 1940-07-29 | Phil Johnson | LWDWLL | Fair Grounds Arena, Allentown | LOST Technical knockout |
| 1940-06-27 | Johnny Shkor | WWWWWW | Coliseum, Baltimore | LOST Technical knockout |
| 1940-04-01 | Larry Marino | LWDLWL | Carlin's Park, Baltimore | LOST Technical knockout |
| 1939-11-29 | Rudy Radish | debut | Madrid Palestra, Harrisburg | NC No Contest |
| 1939-10-16 | Johnny Kapovich | DWWDLW | Carlin's Park, Baltimore | LOST KO |
| 1939-10-04 | Maynard Daniels | WWWWWW | Armory, Hagerstown | LOST KO |
| 1939-09-15 | Maynard Daniels | WWWWWW | Municipal Stadium, Philadelphia | LOST Points |
| 1939-05-11 | Jimmy Ferrara | WLLLWW | Coliseum, Baltimore | WIN KO |
| 1939-03-16 | Jack Gregory | DWDLLL | Olympia A.C., Philadelphia | WIN Points |
| 1939-01-05 | Joe Sofi | WLLLLW | Olympia A.C., Philadelphia | LOST Points |
| 1938-03-08 | Buddy Paul | LLWDLW | Madrid Palestra, Harrisburg | WIN Points |
| 1937-11-17 | Jake Friedman | LWLLLL | Madrid Palestra, Harrisburg | WIN Technical knockout |
| 1936-05-26 | Vic Smith | LL | Madrid Palestra, Harrisburg | DRAW Points |
| 1936-04-15 | Ben Lesko | debut | Madrid Palestra, Harrisburg | WIN Technical knockout |
