I’m continually inspired by combat vets like Noah Galloway, Todd Love, Earl Granville and Edward Lychik doing obstacle races despite injuries that would hold back lesser men. When I think about that, I stop feeling sorry for myself and push harder toward my goals. I don’t have a story like theirs. Mine is probably more like most Americans, until I decided to change the ending. Two events drove the plot: First, my marriage falling apart, then volunteering at an obstacle course race.