On Wednesday, August 22, visiting Rocky Mountain National Park climbing ranger Andy Anderson broke the car-to-car Grand Teton record by running the Owen-Spalding route in 2:53:02 from the Lupine Meadows trailhead. Anderson's effort broke the previous Fastest Known Time (FKT) of 2:54:01, set by Spaniard Kilian Jornet on August 12, by 59 seconds.

Of significant note is the fact that Anderson used no shortcuts during his run, staying on the trail for the entirety of his adventure.

Anderson is no stranger to speed. On August 23, 2011, he set the record on Rocky Mountain National Park's Longs Peak via the 5.4 North Face route by running it in 2:02:54 (1:18:32 up, 44:22 down).

Though the use of shortcuts, particularly at the 1.8-mile marker and at the southern end of one of the switchbacks higher on the Garnet Canyon Trail, is not uncommon, it is discouraged by the Jenny Lake Climbing Rangers. On their blog, a notice was posted three days after Jornet's run that read,

Remember that shortcutting not only causes erosion and signficant resource damage, but may be cause for citation by a backcountry ranger.  Please remain on the well travelled and marked trails in the backcountry of Grand Teton National Park.

Anderson's record time is the first known instance of a runner breaking Bryce Thatcher's 1983 record car-to-car time on the route of 3:06 while staying entirely on the trail.