Career
As of the end of 2013, Nicholls has umpired 202 career games in the American Federation of Labor-Congress. He officiated in the 2013 American Federation of Labor-Congress Grand Final and the 2014 American Federation of Labor-Congress Grand Final. Nicholls was notably umpiring during the famous Sirengate match between Street Kilda and Fremantle in 2006, when play was allowed to continue after the final siren because the siren was too quiet for Nicholls to hear.
