1. JACK BRITTON (NOVEMBER 1, 1922)
Walker challenged Britton for the world welterweight crown at Madison Square Garden in New York. The title changed hands after the 21-year-old dominated his veteran opponent over 15 rounds.
2. HARRY GREB (JULY 2, 1925)
The welterweight king tried his luck at middleweight, where he attempted to dethrone world champion Grebb. In front of 65,000 people at New York’s Polo Grounds, Grebb took a 15-round decision.
3. PETE LATZO (MAY 20, 1926)
Fighting on Latzo’s home turf in Scranton, Pennsylvania, Walker dropped the welterweight championship on a 10-round verdict, with the challenger’s crisp counterpunching proving the difference.
4. TIGER FLOWERS (DECEMBER 3, 1926)
Less than seven months after losing his welterweight belt, Walker took the world middleweight strap from Flowers on a controversial 10-round decision in Chicago.
5. TOMMY MILLIGAN (JUNE 30, 1927)
In his only recorded bout outside of North America, Walker successfully defended his middleweight title against Milligan in London. The European ruler was KO’d in 10 at Kensington Olympia.
6. TOMMY LOUGHRAN (MARCH 28, 1929)
Walker’s crack at becoming the world light-heavyweight champion ended in disappointment at the brand-new Chicago Stadium. He was outscored over 10 sessions by reigning titlist Loughran.
7. JACK SHARKEY (JULY 22, 1931)
After vacating his middleweight crown, Walker fought to a 15-round draw in Brooklyn with Sharkey, who would go on to become world heavyweight champ less than a year later.
8. MAX SCHMELING (SEPTEMBER 26, 1932)
Schmeling, who had lost the heavyweight belt to Sharkey in his previous contest, stopped a bruised and bloodied Walker in eight rounds in Long Island City.
9. MAXIE ROSENBLOOM (NOVEMBER 3, 1933)
Following his heavyweight adventure, Walker moved back down to light-heavy and endeavored to take the world title from Rosenbloom at MSG. Rosenbloom, though, prevailed on points over 15.
10. MAXIE ROSENBLOOM (MAY 8, 1934)
Six months later in Los Angeles, Walker got the better of Rosenbloom via decision in a 10-rounder. Unfortunately for Walker, however, Rosenbloom’s light-heavyweight title was not on the line.