A not-safe-for-work riddle about a girls’ track team is:
 
Q: What’s the difference between a tribe of clever pygmies and a girls’ track team?
A: The pygmies are cunning runts…
 
The joke has been cited in print since at least 1984.
 
         
Google Books
The Thoroughly Tasteful Dirty Joke Book
By Shelli Sonstein
New York, NY: Stein and Day
1984
Pg. 118:
“What’s the difference between a women’s track team and circus midgets?”
“The circus midgets are cunning runts.”
 
Google Books
Maledicta, Volumes 7
Edited by Reinhold Aman
Waukesha, WI: Maledicta Press
1984
Pg. 32:
What’s the difference between pigmies and female track stars?
— Pigmies are cunning runts. (Letter transfer)
   
Google Books
The Jock Joke Book
By Ewell Wince
Toronto, ON: PaperJacks
1988
Pg. 103:
What’s the difference between circus midgets and a women’s track team?
One’s a bunch of cunning runts and . . .
   
Google Books
A Treasury of Gross Jokes
By Julius Alvin
New York, NY: Kensington Books
2003
Pg. 25:
What’s the difference between a tribe of pygmies and a women’s track team?
One is a group of cunning runts.
 
Twitter
4joethomas
@4joethomas
What is the diff. Between a group of midgets in mensa & an all lesbian track team?... The first is a bunch of cunning runts!
4:28 PM - 27 Mar 2009
 
Twitter
Jeff McCann
@euthanasia86
Q: What is the difference between a group of 4 year old geniuses and a girls track team? 
A: One is a group of cunning runts…
3:33 PM - 10 May 2009
     
Twitter
Melise Jones
@melisej
Replying to @jemimakiss
@jemimakiss Cunning runts: A band of clever pygmies OR a girl’s cross-country team?
9:57 AM - 11 Aug 2009
 
Twitter
Darlene
@haremgirld
@adamlambert what’s the difference between African pygmies and a girls track team? 1 is a bunch of cunning runts, other a bunch of running
11:04 PM - 12 Aug 2009
 
Twitter
DoktorStrangeBill
@DoktorBill13
@blognigger And the difference between a girls’ track team and a bunch of midgets in mensa?  One is a bunch of Cunning Runts….
8:09 PM - 23 Oct 2009
     
Reddit—Funny
What’s the difference between a tribe of sly pygmies and a sorority girl track team? (self.funny)
submitted March 31, 2012 by lotree
The tribe of sly pygmies is a bunch of cunning runts.
May be a stereotype… but HAH!
 
Reddit—Dad Jokes 
What’s the difference between a group of midget geniuses and a woman’s track team? (self.dadjokes)
submitted July 20, 2013 by stevekraft
Well, one is a group of cunning runts.
     
Reddit—Jokes
What’s the difference between a tribe of clever pygmies and a girls’ track team?
submitted September 7, 2014 by gippa007
One is a group of cunning runts.
   
Google Books
Black Humor Jokes
By Peter Friedrich
XinXii (XinXii.com)
2015
Pg. ?:
What’s the difference between a ladies’ track team and a group of Pygmies?
The Pygmies are cunning runts.
 
Reddit—Jokes
What’s the difference between an African tribe of pygmies and the girls cross country team?
submitted December 11, 2017 by The_Rawk_Lobster
One is a group of cunning runts..
 
Reddit—MeanJokes
What’s the difference between an all midget debate team and a girl’s track team? (self.MeanJokes)
submitted February 13, 2018 by UnclePepe
The debate team is a bunch of cunning runts.