Winning an Eagle at the USBC Open Championships can be a maddeningly fluky thing: Some of the greatest bowlers who turn in many great performances never win an Eagle, huge scores you think will win don’t win, and scores you think have no chance to win do win. I have been fortunate enough to win five Eagles, and a couple of those I didn’t think would win. And I have left with many more leads that didn’t hold, including a couple that I had far more confidence in than any of...