CSIO meaning in International ?

What is Concours de Saut International Officiel mean?

Concours de Saut International is a ranking system for the equestrian competition show jumping. All CSI events are approved by the international governing body of equestrian sport, the FEI.

The CSI is broken down into a starring system, where more competitive events with more prize money have a higher number of stars. Starring goes from 1 to 5.

CSI*****/CSI5*: Prize money 500,000+ (CHF), (equivalent to approx. £250,000 (sterling), approx. $450,000 (USD)). Horses must be at least 7 years old.CSI****/CSI4*: Prize money from 250,000 to 499,999 CHF. Horses must be at least 7 years old.CSI***/CSI3*: Prize money 100,000 to 249,999 CHF. Horses must be at least 7 years old.CSI**/CSI2*: Prize money 50,000 to 99,999 CHF. Max. height 1.45m. Horses at least 6 years old.CSI*/CSI1*: Prize money 49,999 CHF or lower. Max height: 1.40m. Horses at least 6 years old.

Additionally, speed and height may vary between competitions. For the Nations cup held outdoors, 4* and 5* competitions must ride 400 meters per minute, 375 mpm for 3* competition, and 350 for 1* and 2* competition. All indoor competitions are ridden at 350 mpm.

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