The runners above are taking part in an event called the Saguaro Race, held on Labor Day weekend in Arizona. There's a choice between a more serious eight-mile event, or a two-mile "fun" event. Given the heat of the Arizona desert, and our less than stellar endurance, we know which one we would opt for--- but to each his own, and we're certain that a good time will be had by all.
Click on the link below to display the problem, then come back and click on Read More to see the solution.
September Speed Problem (moderately easy, 30 seconds)
And now, enjoy your Labor Day, and after racing in the heat, refreshments are in order!