Knowledge
Study the rules and understand the reasoning behind them.
Umpiring Department
CAS Umpiring
Training, resources and support for those who help ensure a fair, safe and respectful game.
On the field
An essential role in the game
Every umpire represents the institution and makes decisions that uphold the integrity of competition.
Impartiality
Act with judgement, respect and fairness at all times.
Decision-making
Resolve situations quickly, confidently and responsibly.
Communication
Manage the game and communicate clearly.
Your journey starts here
How to become a softball umpire
No previous experience is required. CAS and its member organizations can help you take your first steps.
- 1
Contact your local association
Reach out to the umpire chief or coordinator at your nearest member organization.
- 2
Get guidance
Learn about the training and practical opportunities available in your area.
- 3
Start your journey
Build experience in local competitions and continue your development.
Our journey
Umpiring in Argentina
The national structure began to take shape in the mid-1980s with CONARSO. Since 2009, the CAS Umpiring Department has continued its development alongside member organizations throughout the country.
Umpiring library
WBSC training and resources
Official materials recommended for study and continued development. The editions currently available are in English.
Softball Umpire Manual
Foundations · January 2026 · English
Two-umpire field mechanics
WBSC Appendix 2 · English
Three-umpire field mechanics
Appendix 3 · January 2026 · English
Elite field mechanics
Three, four, five and six-umpire systems · English
Fast Pitch Casebook
Reissued December 2024 · English
Official Rules of Softball
Fast Pitch 2026–2029 · English
Our umpiring community
Our umpires
CAS umpires who hold international certification.
Reinaldo H. Lanzavecchia
CAS Umpiring Director
Lara Martínez
International certification
Gabriela Jiménez
International certification
José Cinquegrani
International certification
Gerardo Mónaco
International certification
Pablo Acosta
International certification
Agustina Urdaniz
International certification
Nicolás Deu
International certification
Pablo Burgeois
International certification
Analia Merizzi
International certification
Laura Aren
International certification
Emanuel Garbarino
International certification
