In 2014 Softball Canada moved to full adoption of the ISF (now WBSC) umpire mechanics for all systems for both Fast Pitch and Slo-Pitch play. Exceptions to this were the 2 and 3-Umpire Slo-Pitch mechanics, where the previous Softball Canada mechanics were retained until concerns with the use of the 2 and 3-umpire ISF mechanics in the Slo-Pitch game can be addressed.
It should be noted that the ISF (WBSC) utilizes the same mechanics in both fast pitch and slo-pitch play. The use of ISF (1 and 4 umpire) and the Softball Canada (2 and 3 umpire) mechanics applies to all Slo-Pitch play, including competition using the mat in lieu of the strike zone and the use of a commitment and safe line instead of a live plate.
To confirm the decision;
- Softball Canada has adopted the universal ISF (WBSC) Mechanics for 1, 2, 3 and 4 umpire systems in fast pitch and 1 and 4 umpire systems in slo-pitch.
- Softball Canada has retained the previous mechanics for the 2 and 3-umpire system in slo-pitch until such time as implementation issues with the ISF mechanics can be resolved. The 2 and 3 umpire mechanics for slo-pitch can be found in the Softball Canada Level II and III Slo-Pitch National Certification Manuals.