Heather Jackson is your 2018 IRONMAN Arizona Champion! Congratulations! #FueledbyBananas #BananaPower

NEW LEADER: Eneko Llanos has surged past TJ Tollakson to take the lead heading to the conclusion of IRONMAN Arizona!

Can he hold on? Find out only on IRONMAN now!

LEAD CHANGE: Heather Jackson has made the pass for the lead, over taking Carrie Lester as they cross over the halfway point of the run!

Watch LIVE as things heat up in the desert, only on IRONMAN now!