Buescher, who started 26th, dominated along with RFK Racing team-mate and co-owner Brad Keselowski. They were the class of the field at Richmond as the two combined to lead 190 of the 400 laps.
Buescher emerged as the race leader following the final round of green flag pit stops but saw his big lead over Hamlin disappear when a spin by Daniel Suarez brought out a late caution and set up a restart with three laps remaining.
