We're looking for groups of at least 5 Hall of Famers (IBHOF only!), where each man in a group fought everybody else in the group.
(can't find a 6'er - but there should be at least a handful of 5'ers)

oldgringo:
Sammy Angott
Beau Jack
Fritzie Zivic
Henry Armstrong
Lew Jenkins

DeepSleep:
Maxim
Marshall
Charles
Moore
Bivins

hhascup:
Dundee
Kansas
Kilbane
Benny Leonard
Welsh

hhascup:
Jeffries
Choynski
Fitzsimmons
Corbett
Tom Sharkey

hhascup:
Jeanette
Langford
McVea
Norfolk
Wills

hhascup:
Angott
Jack
Jenkins
Montgomery
Zivic

hhascup:
Bivins
Charles
Marshall
Moore
Yarosz

Jimmy McLarnin
Barney Ross
Billy Petrolle
Tony Canzoneri


Sammy Angott
Beau Jack
Fritzie Zivic
Henry Armstrong
Lew Jenkins


That's all I have.

Jimmy McLarnin
Barney Ross
Billy Petrolle
Tony Canzoneri


Sammy Angott
Beau Jack
Fritzie Zivic
Henry Armstrong
Lew Jenkins


That's all I have.

Well done - you got the first 5'er!

It's tough because there are some guys like Ike Williams and Bob Montgomery who fought many of the same guys, just not ALL of the same guys.

This made me boxrec Tony Canzoneri and I was reminded of how many great and/or talented fighters he faced throughout his career.

Lou Ambers
Jimmy McLarnin
Barney Ross
Benny Bass
Kid Chocolate
Frankie Klick
Billy Petrolle
Baby Arizmendi
Johnny Jadick
Jack Berg
Johnny Dundee
Bud Taylor

and on and on.

It's tough because there are some guys like Ike Williams and Bob Montgomery who fought many of the same guys, just not ALL of the same guys.

This made me boxrec Tony Canzoneri and I was reminded of how many great and/or talented fighters he faced throughout his career.

Lou Ambers
Jimmy McLarnin
Barney Ross
Benny Bass
Kid Chocolate
Frankie Klick
Billy Petrolle
Baby Arizmendi
Johnny Jadick
Jack Berg
Johnny Dundee
Bud Taylor

and on and on.

Yes, that is indeed an impressive career... and a great shame he had that last fight. Imagine if he had retired before that - without ever having been stopped in 174 bouts. That would REALLY have been something!

I'm not sure if this is a legit one but perhaps,

Maxim
Marshall
Charles
Moore
Bivins

I'm not sure if this is a legit one but perhaps,

Maxim
Marshall
Charles
Moore
Bivins

That most certainly is legit - good find!

Apparently this isn't as easy as I thought, as you guys have come up with only 2 groups so far (at least 4 more out there).

Hint: There's a certain era where several boxers, who would later become HOFers, weren't given a chance to fight for a world title - so instead they fought each other. Not once, but MANY times!

DeepSleep named a group from a completely different era - which may not be the only one hiding there!

From reading your hint the first names that came to mind were;

Willis
Jeanette
Langford
McVey

I would say Jack Johnson but I'm pretty sure he never fought Willis.

Someone with more knowledge of this era might be able to name the fifth if there is one.

Sorry I haven't been on recently BUT I have been doing a lot of research on the "Sunnyside Gardens."

Dundee, Kansas, Kilbane, Benny Leonard & Welsh
Jeffries, Choynski, Fitzsimmons, Corbett & Tom Sharkey

Sorry I haven't been on recently BUT I have been doing a lot of research on the "Sunnyside Gardens."

Dundee, Kansas, Kilbane, Benny Leonard & Welsh
Jeffries, Choynski, Fitzsimmons, Corbett & Tom Sharkey

Had a feeling that, sooner or later, you would have something to say about this!

Your first 5'er is one that i didn't find myself... which means, there are still 3 (at least) out there, that haven't been mentioned yet.

Jeanette Langford McVea Norfolk & Wills

Jeanette Langford McVea Norfolk & Wills

Just 2 more now (that I can think of - I wouldn't be surprised, if there are several others!)... and both have ALMOST been mentioned in this thread already!

Angott
Jack
Jenkins
Montgomery
Zivic

Bivins
Charles
Marshall
Moore
Yarosz

Angott
Jack
Jenkins
Montgomery
Zivic

Bivins
Charles
Marshall
Moore
Yarosz

Exactly!

As said, there could be other groups hiding out there... but unless someone has something to add to this, I think this should just about do it.

Thanks to oldgringo, DeepSleep and hhascup for contributing.