The Rolex Grand Slam of Show Jumping[1] is an initiative which unites the four Major tournaments:[2]
In order to win the Grand Slam, a rider has to win the Grand Prix at the four shows in direct succession.[3] On 13 September 2015, Scott Brash became the first rider to ever win the Grand Slam.
With Hello Sanctos, he consecutively won the three Majors at the CHI Geneva 2014, the CHIO Aachen 2015 and Spruce Meadows “Masters” Calgary 2015.