[1] Apart from Sinndar, Grand Lodge (winner of the Dewhurst Stakes and the St James's Palace Stakes) sired the winners of over six hundred races including Grandera, Indian Lodge (Prix du Moulin de Longchamp, Prix de la Forêt) and Queens Logic (undefeated two-year-old champion).

Starting the Evens favourite, he took the lead in the final furlong and won "comfortably" by one and a half lengths from Rainbow And Gold, with the future Melbourne Cup winner Media Puzzle a neck away in third place.

Bernstein led from the start, and went clear of his opponents, but suddenly weakened inside the final furlong and was passed by the 50/1 outsider Murawwi.

Sinndar, who had been apparently struggling to make an impression, began to stay on strongly, catching first Bernstein and then Murawwi to win the Group One prize by a head.

[7] In 2000, Sinndar was clearly aimed at a staying campaign, bypassing the usual Guineas trials and opening his season with a run in the Listed Ballysax Stakes.

[13][14] The Irish Derby featured an anticipated meeting between Sinndar and the English-trained Holding Court, who had won the Prix du Jockey Club- the French Derby- by six lengths on soft ground.

Sinndar was moved into the lead in the last quarter mile and pulled steadily away from the field to win by nine lengths, despite being eased down by Johnny Murtagh near the finish, in what was described as "one of the great Classic performances".

[18] The Niel often attracts the best colts in France (Montjeu and Hurricane Run were among the recent previous winners), but the opposition to Sinndar in the 2000 race was relatively weak.

By far his most dangerous rival was expected to be the 1999 Arc winner Montjeu, who had won eight of his last nine starts, including six Group Ones, and was described as being "on the verge of immortality".

[21] Montjeu was made 4/5 favourite ahead of Sinndar at 6/4, with the unbeaten German colt Samum, and the Prix Vermeille winner Volvoreta the only other runners to start at less than 25/1.

Several horses attempted to challenge, with the filly Egyptband looking the biggest threat to the leader, but Sinndar stayed on to win by one and a half lengths.

Curiously, he was then beaten in a separate poll for the Cartier Horse of the Year title by a rival three-year-old colt, the miler Giant's Causeway.

[30] He sired the winners of more than 200 races including Shawanda (dam of Encke), Youmzain and Rosanara (Prix Marcel Boussac) and Shareta finished second to Danedream in the 2011 Arc.