If there’s one thing that a pair of underpaid, endorphin-addicted, former collegiate athletes can’t say no to, it’s free entry into a race that involves barbed wire, spear-throwing, and enough running to sort out the pretenders. That’s why Topher and I found ourselves on our way to the Spartan Race near Burlington last weekend. They’d offered media free entry, and we somehow managed to convince ourselves that the six-hour round trip from Williamstown would be...