Photo: 30-minute run, 30-minute ride, 6:00 p.m., -1 degree outside, Marion, IA

Weekly activity log:
Swim: 0 yds (ytd 138,550 yds.)
Bike: 56 miles (ytd 5,683 mi.)
Run: 18 miles (ytd 1,240 mi.)

-37 degree windchill courtesy of Mother Nature; light breeze courtesy of Cycleops.

Photo: 1-hour, 45-minute single speed ride, 9:00 a.m., 40 degrees, Linn County, IA

Weekly activity log:
Swim: 0 yds (ytd 138,550 yds.)
Bike: 76 miles (ytd 5,627 mi.)
Run: 21 miles (ytd 1,222 mi.)

A little snow, a little ice... plenty of gravel.

Photo: 1-hour, 45-minute single speed ride, 8:00 a.m., 20 degrees, Linn County, IA

Weekly activity log:
Swim: 0 yds (ytd 138,550 yds.)
Bike: 86 miles (ytd 5,551 mi.)
Run: 20 miles (ytd 1,201 mi.)

Stupid? Yes. Fun? Yes.