T-Rex Triathlon/Duathalon Series

Join the MAC CLUB Division SAVE $5 on your Entry!  Use Discount Code: 5MAC at Checkout. MAC has created a CLUB division at the Running Fit’s T-Rex Wednesday evening Triathlon/Duathalon series this Summer at Island Lake State Park. There are 3 individual races on June 24 • July 22 • August 19. You can sign up for 1, 2 or do the ... More

Swim to the Moon

MAC Team Open Water Swim in Pinckney Recreation Area, Halfmoon Beach. Sunday, August 16, 2026 15K • 10K • 5K • 2.4 Mile • 1.2 Mile • .5 Mile Swim to the Moon will require a USMS membership - instead of USAT membership to participate.  As a MAC member, you already have a USMS membership! Swim to the Moon is an extraord... More