Mirror Lake Championship, St. Petersburg, Florida, USA On March 7 and 8, 2026, there will be 196 players competing in one of the biggest shuffleboard championships in the world. Ninety players are traveling to sunny St. Petersburg from New York, Chicago, Texas and Norway. This is an amateur open singles format, and the championship round will be played on Sunday afternoon (March 8). This is a fun event for players and spectators alike.