I was asked:

Where can one find racquetball tournament schedules for the world?

My answer was:

Multi-country events put on by the IRF:
https://www.internationalracquetball.com/future-events/

European events:
https://www.racquetball.eu/euroevents/

USA’s sanctioned events:
https://www.r2sports.com/r2-sports-current-events.asp?sportID=1&countryID=1&eventTypeID=1

Canada’s sanctioned events:
https://racquetballcanada.ca/calendar/event-types-tournament/

Ireland’s sanctioned events:
https://www.racquetball.ie/

Todd Boss of Pro Racquetball Stats / USAR Board of Directors member has a document that lists events of note, his “Master Event Calendar”.
https://docs.google.com/spreadsheets/d/1V6OTid6rZ356voXVkoV2sN7KMMbIP9SZd0MssH_nPGU/

For the vast majority of Latin American and Asian countries, you would need to follow their racquetball association on Facebook or simply join the World Racquetball News discussion group as I share those announcements as frequently as possible.

https://www.facebook.com/groups/worldracquetballnews

At this time, there is no single world-wide racquetball calendar where all of the organizations report their schedules.

Photo/art credit to Sudsy Monchik / Veronica Sotomayor.