Ironman: Ryf seeks to continue dominance, Lange looks to hold off strong field for repeat

(Photo by Donald Miralle for IRONMAN) Defending champions Patrick Lange and Daniella Ryf looking on during the professional athlete news conference Thursday.

KAILUA-KONA — As a three-time champion and the course record holder in Kona, Daniela Ryf is already in rarefied air.