Milligram (3 April 1984 – 17 July 2017) was a British Thoroughbred racehorse and broodmare, best known for her win over Miesque and Sonic Lady in the 1987 Queen Elizabeth II Stakes.
Milligram was a "sparely made, workmanlike"[2] chestnut filly with a white star bred by Egon Weinfeld's Meon Valley Stud.
[4] Like the other horses raced by the Meon Valley Stud, Milligram competed in the black and white colours of Helena Springfield Ltd a company owned by Egon Weinfeld.
Milligram made her first appearance in a maiden race over seven furlongs at Newbury Racecourse in September 1986 when she started second favourite in a field of twenty-seven runners.
Milligram started the even-money favourite but appeared unsuited by the slow early pace and after taking the lead inside the final furlong was caught and beaten a short head by Forest Flower.
She took the lead two furlongs from the finish, accelerated clear of her opponents, and won in "effortless" and "sparkling" style[7] by seven lengths from Shaikiya to record her first win at Group level.
Racing on faster ground than she had previously encountered, she took the lead a furlong from the finish and won by three-quarters of a length from Waajib, with the favourite Star Cutter in third and Risk Me fourth.
The principal race was the Queen Elizabeth II Stakes over one mile, which was promoted for the first time to Group One status[8] and attracted five runners including Milligram, Miesque and the leading miler of 1986 Sonic Lady.
[2] In the following year's International Classification, she was rated the third best three-year-old filly in Europe behind Miesque and Indian Skimmer and the best horse of any age trained in the United Kingdom over one mile.