Jack McFarland (Jack Duffala) boxer
- bouts
- 10
- won
- 2
- lost
- 8
- draw
- 0
- Status
- inactive
- Division
- heavyweight
- Debut
- 1911-05-05
- Height
- 6′ 1″/185cm
- Reach
- -
- Age
- -
- Born
- 1890-00-00
- Death
- -
- Nationality
- USA
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| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 1926-12-25 | Rags Madera | WL | Motor Square Garden, Pittsburgh | LOST Split-decision |
| 1926-11-29 | Rags Madera | W | Motor Square Garden, Pittsburgh | WIN Points |
| 1920-10-05 | Al Grayber | DWLLLL | Academy Theater, Pittsburgh | LOST |
| 1920-07-04 | Jack Kelly | DWWDLL | Akron | LOST |
| 1920-01-01 | Bob Martin | WWWWWW | Armory, Grand Rapids | LOST KO |
| 1919-09-19 | Al Grayber | WWWWWW | Academy Theater, Pittsburgh | LOST |
| 1914-11-24 | Al Reich | WWWWWW | Broadway S.C., Brooklyn | LOST Technical knockout |
| 1914-03-16 | Larry Williams | WDDWLL | Shenandoah | LOST KO |
| 1913-02-26 | Jim Coffey | WWWWW | Fairmont A.C., Bronx | LOST Technical knockout |
| 1912-11-28 | Carl Morris | LWLWWW | Dixie A.C., Atlanta | LOST KO |
| 1912-09-28 | Luther McCarty | WWWLDW | Old City Hall, Pittsburgh | LOST KO |
| 1912-06-11 | Gunboat Smith | DWWWLW | Atlas A.C., Rockaway Beach, Queens | LOST KO |
| 1912-05-25 | Tim Logan | WW | National A.C., Philadelphia | LOST |
| 1912-01-03 | Jumbo Wells | WLLLWL | Sharkey A.C., New York | WIN |
| 1911-09-30 | Sailor White | WWLLL | Fairmont A.C., Bronx | DRAW |
| 1911-09-06 | Sailor White | WLWWLL | Fairmont A.C., Bronx | WIN |
| 1911-05-10 | Soldier Delaney | LW | Sharkey A.C., New York | WIN Technical knockout |
| 1911-05-05 | Bob Williams | LDW | National S.C., New York | WIN |
