Full Name: Robert James "Bob" Fitzsimmons
Why Famous: Sport's first 3-division world champion, winning the Middleweight, Light Heavyweight and Heavyweight titles throughout his career.
Also holds the record for the lightest heavyweight champion.
- 1897-03-17 British boxer Bob Fitzsimmons KOs American champion 'Gentleman' Jim Corbett in the 14th round to win World Heavyweight title in Carson City, Nevada
- 1899-06-09 American boxer James J. Jeffries KOs defending champion Bob Fitzsimmons of England in 11th round in Brooklyn, New York to win the lineal World Heavyweight title
- 1900-04-30 Weighing in at 170 lbs British former world heavyweight boxing champion Bob Fitzsimmons KOs 270 lb American Ed Dunkhost in round 2 of a lop-sided bout in Brooklyn, New York
- 1902-07-25 3 years after winning the title from English boxer Bob Fitzsimmons, American champion James J. Jeffries repeats the dose with an 8th round KO in San Francisco for the heavyweight crown
- 1905-12-20 'Philadelphia' Jack O'Brien wins the World Light Heavyweight boxing title after defending champion Bob Fitzsimmons of England retires in round 13 of 20 in San Francisco