Harry Greb vs. Gene Tunney (1st meeting)
1922-05-23 : Harry Greb 162¼ lbs beat Gene Tunney 174½ lbs by UD in round 15 of 15
- Location: Madison Square Garden, New York, New York, USA
- Referee: Billy 'Kid' McPartland
- Judge: Tommy Shortell
- Judge: Elmer Hurley
- Ring Announcer: Joe Humphreys
- American Light Heavyweight Championship (1st defense by Tunney)
- There was a crowd of 13,000.
- Greb was a 3 to 1 betting favorite.
- Tunney bled from his nose, mouth and from cuts over both eyes. He lost almost two quarts of blood during the fight.
- Greb won by a 15-round unanimous decision. Jim Jab of the Pittsburgh Press wrote: "You must go some to award him [Tunney] even one inning of the 15. Perhaps he did earn the third and a portion of the thirteenth. ... Tunney was outclassed, both on outside and inside battling."
- This was the only loss of Tunney's career.
- Immediately after Greb's victory, promoter Tex Rickard cabled World Light Heavyweight Champion Georges Carpentier of France an offer of $150,000 to defend his title against Greb in the United States. Carpentier's manager declined the offer, saying they had already signed for two other fights. Greb said, "I'll fight Carpentier any time, any place."
- Harry Greb vs. Gene Tunney (2nd meeting)
- Harry Greb vs. Gene Tunney (3rd meeting)
- Harry Greb vs. Gene Tunney (4th meeting)
- Harry Greb vs. Gene Tunney (5th meeting)