Jill Malley knows more about competition than she thinks. “You’re doing great,” she said over my shoulder as I pedaled hamsterlike on the stationary bike. Then, leaning in, she added confidentially, “You’ve gone farther than anyone I’ve seen so far.” Nothing like a well-timed stroke to keep a guy from dialing back the stationary bike just when he thinks he’s had all he can take of going nowhere fast.