Why Famous:Known for his enormous strength and stamina, he fought out of a crouch with his left arm extended forward, allowing him to absorb tremendous punishment while wearing his opponents down.
A natural left-hander, he possessed one-punch knockout power in his left hook.
1899-06-09 James J. Jeffries KOs Bob Fitzsimmons in 11 for heavyweight boxing title
1899-11-03 World heavyweight boxing champion James J. Jeffries retains title; beats Irishman Tom Sharkey on points in 25 rounds at Coney Island Athletic Club, Brooklyn, NYC
1900-04-06 James J. Jeffries KOs Jack Finnegan in 1 for heavyweight boxing title
1900-05-11 James J. Jeffries KOs James J Corbett in 23 for heavyweight boxing title
1901-11-15 James J. Jeffries TKOs Gus Ruhlin in 6 for heavyweight boxing title in San Francisco
1902-07-25 James J. Jeffries KOs Bob Fitzsimmons in 8 for heavyweight boxing title
1903-08-14 James J. Jeffries KOs James J Corbett in 10 for heavyweight boxing title
1904-08-25 James J. Jeffries TKOs Jack Munroe in 2 for heavyweight boxing title
1905-05-13 James J. Jeffries retires as boxing champion
1910-07-04 "Fight of the Century": Jack Johnson beats James J. Jeffries by TKO in 15 in Reno, Nevada to retain his world heavyweight boxing title
Eddie Eagan
Leon Spinks
Mike Tyson
Muhammad Ali
Rocky Marciano
Tommy Morrison