Despite not winning a race that season, Biffle's four pole positions are the most by a Truck Series rookie to date and they helped him earn an 8th-place finish in the final standings and the Rookie of the Year Award. He followed it up with a stellar 1999 season in which he recorded nine wins, a single-season Truck Series record that still stands as of 2018[update]. He finished second in the final standings, just eight points behind champion Jack Sprague.