The final event, should they make it, and many drop out before this stage, is the showjumping.

BBC: SPORT | TV/Radio Listings | Grandstand | Three-day eventing explained

Ella was part of a school team which recently competed at the National School Equestrian Association's national showjumping finals.

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Team GB have 22 gold medals, their best haul since 1908, but medal hopes in the individual showjumping were dashed.

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First comes the dressage, then the cross-country endurance test - the most dramatic part of the event - and finally the showjumping.

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This year's tournament, which concludes with Monday's showjumping competition, also serves as a key opportunity to qualify horses for the London Olympics in 2012.

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"No further statement will be issued on the matter, and all focus is now on Dublin, " the joint-statement by the British Equestrian Federation and British Showjumping concluded.

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The title will be decided after Sunday's cross-country test and Monday's showjumping finale, with Fox-Pitt, Funnell and Oliver Townend among other British contenders for the 2011 crown.

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Badminton's champion will be crowned after Monday's showjumping finale.

BBC: Badminton Horse Trials: Mark Todd promoted to lead

Over a course of 10 to 12 obstacles, it is easier than the actual showjumping event, but tough on a horse that has just completed the arduous cross-country section the day before.

BBC: SPORT | TV/Radio Listings | Grandstand | Three-day eventing explained