Jack Dempsey (Manassa Mauler) was an American professional boxer. He was a heavyweight world champion. In a career spanning 12 years, 10 months, and 20 days, Dempsey amassed a record of 58-6-9, which includes 43 wins via KO—1 in a world-title bout. He was inducted into the International Boxing Hall of Fame (IBHOF) in 1992.
Jack Dempsey was born in Manassa, Colorado, USA on June 24, 1895. He made his professional debut at the age of 19 years on November 2, 1914 against Young Hancock. Dempsey defeated Hancock via 1st round KO, making a successful beginning of his pro career.
Dempsey got elevated as the The Ring heavyweight champion at the age of 28 after 69 professional fights, and had his first world-title defense fight against Tommy Gibbons on July 4, 1923. He defeated Gibbons via 15 round points decision.
Dempsey's last fight was a unanimous decision loss to Gene Tunney at age 32, on September 22, 1927, in which he was fighting for The Ring heavyweight title.
Some of Jack Dempsey's best fights were against Georges Carpentier (HOFer), Jack Sharkey (HOFer), and Jess Willard (HOFer). For a top-10 list of Dempsey's best performances, refer to "Best fights of Jack Dempsey".
Dempsey has 6 losses on his record. For details about these losses refer to "Jack Dempsey Losses".
# | Date | Age | Opponent | Res | Via |
---|---|---|---|---|---|
73 | Sep 22, 1927 | 32 | ![]() | loss | UD 10 |
72 | Jul 21, 1927 | 32 | ![]() | win | KO 7 |
71 | Sep 23, 1926 | 31 | ![]() | loss | UD 10 |
70 | Sep 14, 1923 | 28 | ![]() | win | KO 2 |
69 | Jul 04, 1923 | 28 | ![]() | win | PTS 15 |
68 | Jul 02, 1921 | 26 | ![]() | win | KO 4 |
67 | Dec 14, 1920 | 25 | ![]() | win | KO 12 |
66 | Sep 06, 1920 | 25 | ![]() | win | KO 3 |
65 | Jul 04, 1919 | 24 | ![]() | win | RTD 3 |
64 | Dec 30, 1918 | 23 | ![]() | win | KO 2 |
63 | Dec 16, 1918 | 23 | ![]() | win | KO 1 |
62 | Nov 28, 1918 | 23 | ![]() | win | NWS 6 |
61 | Nov 18, 1918 | 23 | ![]() | win | KO 1 |
60 | Nov 06, 1918 | 23 | ![]() | win | KO 3 |
59 | Sep 14, 1918 | 23 | ![]() | win | KO 1 |
58 | Sep 13, 1918 | 23 | ![]() | loss | PTS 4 |
57 | Aug 24, 1918 | 23 | ![]() | win | TKO 5 |
56 | Jul 27, 1918 | 23 | ![]() | win | KO 1 |
55 | Jul 06, 1918 | 23 | ![]() | win | KO 1 |
54 | Jul 04, 1918 | 23 | ![]() | win | KO 1 |
53 | Jul 01, 1918 | 23 | ![]() | win | KO 1 |
52 | May 29, 1918 | 22 | ![]() | win | KO 1 |
51 | May 22, 1918 | 22 | ![]() | win | KO 2 |
50 | May 03, 1918 | 22 | ![]() | win | NWS 10 |
49 | Mar 25, 1918 | 22 | ![]() | win | KO 1 |
48 | Mar 16, 1918 | 22 | ![]() | win | KO 1 |
47 | Feb 25, 1918 | 22 | ![]() | win | TKO 6 |
46 | Feb 14, 1918 | 22 | ![]() | win | KO 1 |
45 | Feb 04, 1918 | 22 | ![]() | win | DQ 6 |
44 | Jan 24, 1918 | 22 | ![]() | win | KO 1 |
43 | Nov 02, 1917 | 22 | ![]() | win | PTS 4 |
42 | Oct 02, 1917 | 22 | ![]() | win | PTS 4 |
41 | Sep 26, 1917 | 22 | ![]() | win | PTS 4 |
40 | Sep 19, 1917 | 22 | ![]() | win | TKO 1 |
39 | Sep 07, 1917 | 22 | ![]() | draw | PTS 4 |
38 | Aug 10, 1917 | 22 | ![]() | draw | PTS 4 |
37 | Jul 25, 1917 | 22 | ![]() | win | PTS 4 |
36 | Apr 11, 1917 | 21 | ![]() | draw | PTS 4 |
35 | Mar 28, 1917 | 21 | ![]() | loss | PTS 4 |
34 | Mar 21, 1917 | 21 | ![]() | draw | PTS 4 |
33 | Feb 13, 1917 | 21 | ![]() | loss | KO 1 |
32 | Nov 29, 1916 | 21 | ![]() | win | KO 2 |
31 | Oct 16, 1916 | 21 | ![]() | win | PTS 10 |
30 | Oct 07, 1916 | 21 | ![]() | win | PTS 10 |
29 | Sep 28, 1916 | 21 | ![]() | win | RTD 3 |
28 | Jul 14, 1916 | 21 | ![]() | draw | NWS 10 |
27 | Jul 08, 1916 | 21 | ![]() | win | NWS 10 |
26 | Jun 24, 1916 | 21 | ![]() | win | NWS 10 |
25 | May 30, 1916 | 20 | ![]() | win | KO 4 |
24 | May 17, 1916 | 20 | ![]() | win | TKO 3 |
23 | May 03, 1916 | 20 | ![]() | win | PTS 10 |
22 | Apr 08, 1916 | 20 | ![]() | win | PTS 10 |
21 | Mar 17, 1916 | 20 | ![]() | win | KO 1 |
20 | Mar 09, 1916 | 20 | ![]() | win | KO 4 |
19 | Feb 23, 1916 | 20 | ![]() | win | KO 1 |
18 | Feb 21, 1916 | 20 | ![]() | win | KO 2 |
17 | Feb 05, 1916 | 20 | ![]() | win | KO 1 |
16 | Dec 20, 1915 | 20 | ![]() | win | TKO 1 |
15 | Dec 13, 1915 | 20 | ![]() | draw | PTS 4 |
14 | Nov 19, 1915 | 20 | ![]() | win | KO 6 |
13 | Oct 23, 1915 | 20 | ![]() | win | KO 3 |
12 | Oct 07, 1915 | 20 | ![]() | win | NWS 10 |
11 | Sep 23, 1915 | 20 | ![]() | win | KO 4 |
10 | Jun 11, 1915 | 19 | ![]() | draw | PTS 10 |
9 | May 31, 1915 | 19 | ![]() | draw | PTS 10 |
8 | Apr 26, 1915 | 19 | ![]() | win | TKO 4 |
7 | Apr 05, 1915 | 19 | ![]() | loss | PTS 4 |
6 | Apr 01, 1915 | 19 | ![]() | win | KO 6 |
5 | Mar 03, 1915 | 19 | ![]() | win | KO 7 |
4 | Feb 26, 1915 | 19 | ![]() | draw | PTS 4 |
3 | Feb 02, 1915 | 19 | ![]() | win | KO 9 |
2 | Nov 30, 1914 | 19 | ![]() | win | KO 1 |
1 | Nov 02, 1914 | 19 | ![]() | win | KO 1 |