The organizers of the Mitsubishi Motors Badminton Horse Trials (England) and the Rolex Kentucky Three-Day Event have agreed to compromise so these two prominent four-stars need not run on the same weekend in 2011.
 
Badminton officials announced earlier this year that the CCI**** would run over the weekend of the May Day bank holiday from 2010 forward. This would place cross-country on Sunday and show jumping on the holiday Monday. Unfortunately, this holiday occasionally clashes with the traditional Kentucky date—cross-country runs on the last Saturday in April and has since 1987.
 
In 2011, Badminton will run one week earlier—April 22-25—which, being the Easter weekend, will still enable the event to climax on a bank holiday Monday. In 2016, Kentucky organizers have agreed to run a week earlier than normal so Badminton can maintain the holiday Monday schedule.
 
Both event directors, Hugh Thomas and Jane Atkinson, salute the agreement as demonstrating the good relationship between the leading international events and being in the best interests of the sport of eventing, which would not have been well served by a clash of two of the three Rolex Grand Slam events or indeed two of the HSBC FEI Classic Four Star Events.
 
Event dates through 2016 are now as follows:
 
Mitsubishi Motors Badminton Horse Trials
Rolex Kentucky Three Day Event

2010
April 30 – May 3
April 22 – 25

2011
April 22 – 25
April 28 – May 1

2012
May 4 – 7
April 26 – 29

2013
May 3 – 6
April 25 – 28

2014
May 2 – 5
April 24 – 27

2015
May 1 – 4
April 23 – 26

2016
April 29 – May 2
April 21 – 24