[7][2] The polo competition consisted of 4 mixed teams made up of players from Britain, France, Mexico, Spain, and the United States.

Georges van der Poële riding Winsor Squire), while a French rider, Louis de Champsavin, on his mount Terpsichore, got the third place.

The High Jump competition resulted in a tie between French rider Dominique Gardere on Canela and Italian Gian Giorgio Trissino on Oreste, with both of their horses clearing 1.85 meters, and the bronze was given to Constant van Langendonck of Belgium, whose mount, Extra Dry, cleared 1.70 meters.

However, Constant van Langendonck and Extra Dry were able to clinch the gold in the Long Jump competition, clearing a distance of 6.10 meters.

Equestrian competition was dropped from the 1904 Olympic Games, and owed its return to Count Clarence von Rosen, Master of the Horse to the King of Sweden, for bringing it back.

[9] The 1906 IOC Congress agreed to his proposal to add dressage, eventing, and show jumping to the program of the upcoming 1908 Olympic Games in London.

However, due to problems with the newly formed International Horse Show Committee, they were not introduced until the 1912 Games in Stockholm and only a polo event was held in 1908.

[12] Vaulting included both a team and an individual competition, with the entrants having to perform movements at the canter and at the halt, both with a saddle and bareback.

[13] The dressage horse no longer has to jump, but the test on the flat has become increasingly difficult, emphasizing the piaffe and the passage.

At this time, piaffe, passage, and all other haute ecole movements were not allowed (including the airs above the ground and the Spanish Walk).

Additionally, all dressage horses were required to jump four obstacles which were a maximum of 1.1 meters high, and another fence with a 3-meter spread.

Riders were required to wear informal uniform if they were military officers, or black or pink coats with silk hats if they were civilians.

The test included an 8-second halt, half-turns on the haunches at the walk, riding with reins in one hand at the trot, "ordinary" and extended trot while posting, a 5-loop canter serpentine with each loop 8-meters in diameter, the canter pirouette, four-, three-, two-, and one-tempi changes, and the piaffe and passage.

Due to World War II, there was not sufficient time to prepare the dressage horses for the 1948 Games.

However, half-pass, renvers, canter pirouettes, and tempi changes were included, with the highest coefficient on the one-tempis.

The top 13 of this group then goes onto the Grand Prix Freestyle (first introduced at the 1996 Olympics), which is written by each individual rider according to strict guidelines, and set to music.

Day 1 was the Endurance Test, consisting of 55 km (34 mi) on roads (with a time allowed of 4 hours, giving a speed of approx.

The test was now required to be held in a 20x60 meter arena, and a time limit was instituted (10-minute 30 seconds maximum).

There was new rule this year that required a double bridle but would not allow martingales, bandages, or bearing reins.

Unlike today, the rider then had to complete a 2 km canter on the flat at 333 mpm (Phase E, which was abolished in 1967).

Stadium jumping rules changed to specify the course- 12 obstacles to be ridden at 375 mpm, with the competitor losing 1/2-point for every second over time.

The Berlin Games saw new rules designed to help protect the horse, mostly regarding the use of performance-altering drugs, especially stimulants and sedatives.

Cross-country was shortened by 2 km and required 32–34 fences that were a maximum of 1.2 meters in height and was to be ridden at the heightened speed of 570 mpm.

However, it was not until Helena du Pont competed for the United States at the 1964 Tokyo Olympics that eventing saw its first woman representing her country.

These studies provided a great deal of valuable information, debunking several myths, and the results have been useful to horsemen outside of eventing as well.

This was intended to reduce the amount of space needed to hold an Olympic-level competition, thereby helping to ensure that the sport was not ousted by the IOC from the Olympics.

The course also included a ditch, stone wall, post-and-rail, brush, and triple-bars, and was ridden at a speed of 400 mpm.

Each jump was worth 10-point, and riders could lose points for various disobediences and mistakes: Like eventing, all horses had to carry at least 165 lbs in weight.

The course had 20 efforts, including a narrow gate, open ditch, double oxer, and a wall.

All rules stayed the same except for: The 1948 London Olympics had 44 riders from 15 nations competing, including for the first time Brazil, Ireland, Denmark, and Finland.