Both runners are at the top of their game.
Both runners own American indoor records.
Galen Rupp had hoped to go for an American record there.
Oregon Track Club star finishes second in 13:11.44 as Mo Farah wins in a British record 13:10.60.
He could own every American indoor record from the mile through 5K.
Can anyone beat Ryan Hall in Houston this weekend?
What do YOU think was the top moment in U.S. distance running in the last decade?
His incredible 2010 season caught the attention of the running world.
And the #1 moment is...
Despite the divorce, the two will still maintain a coaching relationship.