Comments: Maybe the hardest marathon in a 226km triathlon, the hardest marathon of an ironman.
Bike course good for climbers and funny for aero-mads.
Name: C L
Location: Denver, CO
Summary: Hard but beautiful course
Comments: Very scenic.
Tough bike & run courses, lots of hills.
Great race to really test yourself.
Not a course for PBs (or PR).
One disadvantage is that T1, T2, registration & the expo are all in different places, reducing the overall IM atmosphere.