A Marathon of Generosity

Old Bill’s Fun Run is held annu­al­ly in ear­ly Sep­tem­ber. There is a 5K and 10K timed run, a timed adap­tive 5K & 10K, an untimed FUN RUN/​walk, and a high­ly com­pet­i­tive Dia­per Der­by. Win­ners of each race receive prize mon­ey to donate to their favorite non­prof­its. The 2026 Old Bil­l’s Fun Run is on Sat­ur­day, Sep­tem­ber 12th!

Register to Race

Countdown to Run Day

September 12, 2026

Frequently Asked Questions

Mr. Old Bill loves to run, and one day while on a run he got the idea for an annu­al com­mu­ni­ty-wide fundrais­ing event to ben­e­fit all local nonprofits.

Every­one is invit­ed to enjoy Old Bill’s fes­tiv­i­ties, learn about local non­prof­its, and cel­e­brate philanthropy. 

Old Bill’s is a fundrais­er held in Jack­son, WY each sum­mer. The 2026 Old Bil­l’s Fun Run will be held on Sat­ur­day, Sep­tem­ber 12 at 8:30am. The Old Bil­l’s 2026 Giv­ing Sea­son takes place from August 14-Sep­tem­ber 18 at 5PM.

Old Bill’s fes­tiv­i­ties will take place at Jack­son Ele­men­tary School fields on Wil­low Street in down­town Jackson.

Old Bill’s t‑shirts are avail­able dur­ing the Giv­ing Sea­son at the Com­mu­ni­ty Foun­da­tion (145 E. Snow King Ave) and on Run Day (while sup­plies last). 

Run­ner reg­is­tra­tion is free and avail­able online. Timed divi­sions are: Women’s 5K, Men’s 5K, Girls’ 5K (under 14 years old), Boys’ 5K (under 14 years old), Adap­tive 5K, Adap­tive 10K, Women’s 10K, and Men’s 10K. 

The top timed run­ners will win mon­ey to donate to their favorite Old Bill’s par­tic­i­pat­ing nonprofits. 

Advance reg­is­tra­tion is encour­aged, how­ev­er, you may reg­is­ter to walk or run in the untimed Fun Run on Run Day at the reg­is­tra­tion tent at Jack­son Ele­men­tary School field.

Timed run­ners may pick up their bibs at the Com­mu­ni­ty Foun­da­tion (145 E. Snow King Ave) the week lead­ing up to Run Day. Bibs will also be avail­able to pick up on Run Day from 7:30 to 8:30 a.m. at the Jack­son Ele­men­tary School fields.

Old Bill’s wel­comes dogs that are expe­ri­enced and com­fort­able in crowds. Please keep them on a short leash and pick up after them. No oth­er ani­mals are allowed.