And here's the quote of the day, from Lance Armstrong, who did clock under 3 hours (2:59:36). His longest run was a 16 mile pacer. File this quote under, "Runners get respect."
"Without a doubt that was the hardest physical thing I've ever done.... I can tell you, 20 years of pro sports, endurance sports, from triathlons to cycling, all of the Tours, even the worst days on the Tours, nothing was as hard as that and nothing left me feeling the way that I feel now in terms of just sheer fatigue and soreness."