That was due in no small part to Guthrie's painfully slow play, most noticeably a lengthy pre-shot routine that had former European Tour professional Wayne Riley - working as an on-course commentator for Sky Sports - describing him as "the American snail".
However, unlike Guan Tianlang in the US Masters and Hideki Matsuyama in the Open Championship this year, Guthrie was not penalised for slow play, an aberration which highlights the major flaw in the system.
Under current regulations, players do not begin being timed by officials until their group loses its place on the course, allowing the slow play of one member of a three-ball to be "covered up" by the other two players.
This is precisely what happened with Guthrie in the second round at Lake Malaren as he was paired with compatriots John Daly and Peter Uihlein, both of whom waste little time.
During round three, playing partner Ricardo Gonzalez - himself usually a very quick player - complained to officials about the time Guthrie was taking over his shots. Again, Guthrie received no penalty.
Hopefully, this will be one of the issues raised - and resolved - when the USGA hosts a symposium next week to discuss the pace of play.
Entitled "While We're Young: Golf's Pursuit of a New Paradigm for Pace of Play," the symposium is "structured to bring new ideas and solutions to the game at large".
Failing any major changes in the rules, the alternative is for rules officials to work with Guthrie - who did only turn professional in 2012 - on speeding up his pre-shot routine. Either that or send him out last every week.