[3] Bor attended Arnesens High School south of Eldoret, where he ran a 9:15 steeplechase and was district champion in the long jump and pole vault.

In 2007 he won a scholarship to Iowa State University, where he placed fourth in the steeplechase at the 2008 NCAA Championships in 8:36.84 earning All-American status.

Another Kenyan-American, Stanley Kebenei was the closest to Jager but began to fade as Bor, Andy Bayer and Donn Cabral were chasing.

On the outside, Bor was clean over the water jump and off to the races after Jager, on the inside Kebenei was unable to find his way out of the pit and fell onto all fours, causing Cabral to have to make an extra barrier jump over his body while Bayer sidestepped the fall but was losing ground chasing Bor.

After the race, the Nike Bowerman team filed a protest against Bor (the only non-Nike athlete in the final five) that was unsuccessful.