First - the money raised through team in training goes to the leukemia and lymphoma society, thus - the people who benefit are people with blood cancer. The money goes to research, educations of patient and health care providers, and it goes to support financial assistance of patients with blood cancer (leukemia, lymphoma, myeloma, MDS (myelodysplastic syndrome).
You may want to check out teamintraining.org
You can walk/run half or full marathons, ride your bike 100 miles, and participate in olympic distance triathlons.
Team in Training has been around much longer than the ACS "determiNATION' program and from what I know, the ACS program has been modeled after the TNT program. Although there are lots of similarities there may be some differences.
I hope that answer your question. Personally I have done 8 bike rides - three marathons, and two triathlons for Team in Training. I will be doing a triathlon next summer.
"You are the CEO of your one person company" Chris 'Macca' McCormack three time ironman world champion.