Fighting isn't necessarily considered as an activity or "work", but it is considered as a sport. I think it's an important topic to touch since pit bulldogs were bred for this.
Don Mayfield and Maurice Carver
Don Mayfield and Maurice Carver
Bullyson vs. Sir
Bullyson vs. Benny Bob
I just listed a few videos because most of them are blocked, preventing people from viewing them and I want my readers to be able to view them.
Southern Inferno Kennels Irish Rage: http://www.youtube.com/watch?v=EwvPqZIQZyo
Southern Inferno Kennels Irish Rage: http://www.youtube.com/watch?v=irQkFpzZ9JQ
Hog Hunting: http://www.youtube.com/watch?v=oBHuMxVZKII
I can only find one picture of a dog mill racing at a dog show, but I'll just attach other pictures of dogs on mills. I notice that most people take videos, not pictures.
Since some of you may not know what conformation is, I guess I should list a few articles on the conformation standard of the American Pit Bull Terrier which you can find here: ADBA Standard: http://www.adbadog.com/p_pdetails.asp?fpid=32. APDR Standard: http://apdrdogs.org/ (go to their website, hover over breeds and click "American Pit Bull Terrier" to view their standard). APDR Standard: http://www.aadrdogs.com/ (go to their website and on the right side, click "Breeds" and once you're on the page that it takes you to, click on the "APBT Standard" on the left side).
Let's take a look at some American Pit Bull Terrier conformation dogs:
ADBA Ch. Penny Lane
Ch. K9 Performance Kennels Varro BH RO2 ACAL 1, 2, 3 SDC II CGC
ADBA Ch. Blaizen's Dezba
Southern Inferno Kennel's Arson
Ch. Havoc (ADBA & AADR Ch. Havoc)
Ch. Cowboy (ADBA Ch. Cowboy)
Lure Coursing UKC Premier 2010: http://www.youtube.com/watch?v=yff1jqBzn-c
Boom, the Staffordshire Bull Terrier lure coursing: http://www.youtube.com/watch?v=Z3OWX4SBtec - Please understand that American Pit Bull Terriers and Staffordshire Bull Terriers (Staffies) are two whole different breeds.
While this isn't a picture of a dog doing flyball, this dog has won multiple flyball titles. Here's the dog's pedigree: http://www.apbt.online-pedigrees.com/modules.php?name=Public&file=printPedigree&dog_id=283751
While a few of the dogs in this specific post in a few of these pictures and videos are NOT pit bulls, I used them as an example of the activities that bully breeds of any breed can perform in. Also, it was kind of hard to find pictures or videos of pit bulls involved in certain sports/activities which is why I listed a few pictures/videos of other bully breeds performing in different activities and sports. Pit Bulls can perform in every sport/activity listed above.
Picture sources (sorry, can't list all of them, didn't keep track of where some of the pictures came, but I'll try my best to list most of the sources):
Roki Reds: http://www.rokireds.com/joxp2.jpg
Against the Wind Kennels: http://www.againstthewindkennels.com/DANGER%20ADBA%20IDAHO.jpg
Roki Reds: http://www.rokireds.com/jox1200.jpg
Ability Made Pits: http://www.abilitymadepitsampkennels.com/dock%20Diving%20APBT.jpg
Caragan Kennels: http://www.caragankennel.com/events/dock-2.jpg
Ability Made Pits: http://www.abilitymadepitsampkennels.com/dock%20Diving%20APBT%201.jpg
Working Pit Bull: http://www.workingpitbull.com/images/dockgoodyeller.jpg
Ability Made Pits: http://www.abilitymadepitsampkennels.com/wall%20climb.png
Pit Bull Zone: http://pitbullzone.com/community/uploads/FileUpload/1/195361.JPG
Cocks and Bulls: http://i1179.photobucket.com/albums/x394/CocksAndBulls/th_DSCN6116.jpg
Fun Show Web: http://memberfiles.freewebs.com/18/34/35323418/photos/Fun-Show-Feb-28-09/hangtime%20winner.JPG
Working Pit Bull: http://www.workingpitbull.com/Images2/cantbiteharder.jpg
Working Pit Bull: http://www.workingpitbull.com/images/dirk09.jpg
APBT Online Pedigree: http://www.apbt.online-pedigrees.com/modules.php?name=Public&file=printPedigree&dog_id=411020
APBT Online Pedigree: http://www.apbt.online-pedigrees.com/pictures/364251.jpg
Neal Dog Kennels: http://www.freewebs.com/nealdogs/photos/undefined/va%20best%20of%20opposite%20cowboy2.jpg
Neal Dog Kennels: http://www.freewebs.com/nealdogs/havoc3.JPG