Grand Slam of Eventing

The Grand Slam of Eventing, sponsored by Rolex, consists of three of the top CCI5*-L equestrian eventing competitions in the world. Pippa Funnell in 2003 and Michael [Jung (equestrian)|Michael Jung] in 2016, are the only riders to have achieved the Grand Slam since its inception in 1999. To win the Grand Slam, a rider must consecutively win all three events, although they are permitted to ride different horses in each competition. This is especially important, since the Badminton Horse Trials is only one week after Kentucky, and the horse would not have sufficient time to recover between the two competitions, especially since they would have to be flown overseas in that time.
The three events that make up the Grand Slam are:

Defender Kentucky Three-Day Event in Lexington, Kentucky, United States
MARS Badminton Horse Trials in Gloucestershire, England
Defender Burghley Horse Trials near Stamford, Lincolnshire, England

Winners receive an extra $, in addition to their winnings from each event.

Past winners

The Grand Slam of Eventing began in 1999, and has since only been won by two riders.
Pippa Funnell :

2003 Kentucky Three Day on Primmore's Pride
2003 Badminton Horse Trials on Supreme Rock
2003 Burghley Horse Trials on Primmore's Pride

Michael Jung :

2015 Burghley Horse Trials on La Biosthetique-Sam FBW
2016 Kentucky Three Day on FischerRocana FST
2016 Badminton Horse Trials on La Biosthetique-Sam FBW

Other notable performances

2006 Kentucky Three Day on Master Monarch
2006 Badminton Horse Trials on Moonfleet
2006 2nd Burghley Horse Trials on Moonfleet

Oliver Townend :

2009 Badminton Horse Trials on Flint Curtis
2009 Burghley Horse Trials on Carousel Quest
2010 Kentucky Horse Trials on Ashdale Cruise Master and ODT Master Rose,

William Fox-Pitt :

2011 Burghley Horse Trials on Parklane Hawk
2012 Kentucky Three Day on Parklane Hawk
2013 5th Badminton Horse Trials on Parklane Hawk

Andrew Nicholson :

2012 Burghley Horse Trials on Avebury
2013 Kentucky Three Day on Quimbo
2013 3rd Badminton Horse Trials on Nereo

Career wins

Pippa Funnell - Badminton, Rolex Kentucky, Burghley
Andrew Hoy - Burghley, Rolex Kentucky, Badminton
Lucinda Fredericks - Burghley, Badminton, Rolex Kentucky
William Fox-Pitt - Burghley, Badminton, Rolex Kentucky
Mary King - Badminton, Burghley, Rolex Kentucky
Michael Jung - Rolex Kentucky, Burghley, Badminton
Oliver Townend - Badminton, Burghley, Rolex Kentucky

Pre 1999:

Bruce Davidson won Burghley, Badminton and six times at Kentucky, prior to the latter event becoming a four-star event in 1998 and the Grand Slam being established in 1999.

Rolex

Having picked up the Grand Slam concept, which was originally launched by the three events acting in concert, the company have since established themselves as a leading sponsor within Three Day Eventing. Furthermore, they were title sponsors of the Rolex Kentucky Horse Trials until they abandoned eventing title sponsorship across the globe and dropped the sponsorship. The Rolex Kentucky Horse Trials is now the Land Rover Kentucky Three Day Event, since Land Rover picked up the sponsorship. Rolex was the title sponsor of the event from 1981 to 2017. Rolex remains the official timepiece of the event.