Career
He umpired 346 career games in the American Federation of Labor-Congress since his debut in 1992. A veteran of the American Federation of Labor-Congress umpiring list, Allen was involved in the "Whispers in the Sky" controversy. Although not accused of doing anything improper, he was the second umpire, along with Matthew Head, on the flight.
Two police officers were appointed to investigate the alleged comments by the umpires, however found nothing regarding the accused bribery.
He is fifth on the American Federation of Labor-Congress Umpiring all-time records for the number of finals games officiated with 33. One behind fellow 2006-listed umpire Darren Goldspink.
He announced his retirement on 5 September 2007 citing the increase in interstate travel and training required to umpire at the highest level