John Size (born 10 July 1954) is one of the most successful racehorse trainers in Hong Kong history and was inducted into the Australian Racing Hall Of Fame in 2018. After a successful career in his native Australia, Size arrived in Hong Kong for the 2001-02 season with a reputation for rejuvenating horses set back by illness or injury and for his ability to mould and develop young horses from the beginning of their careers. In his first season, he trained 58 winners to become only the second trainer ever to win the championship title in his first season. Size subsequently added more championships in 2003, 2004, 2006, 2008, 2010, 2012, 2016, 2017, 2018 and 2019, and shares the record of 11 Hong Kong title wins with another legendary Australian, George Moore.[1] Size holds the record for the number of winners saddled in a Hong Kong season - 95 in 2016-17 and, in the 2017-18 season, broke the Hong Kong record for prizemoney won by his runners with HK$176,441,240. At the end of the 2019-20 season, he had trained 1,257 winners in Hong Kong, ranking him only behind John Moore (1,735) and Tony Cruz (1,294). He lives in Hong Kong with his wife, Coco, and their daughter, Carina.