1984 Jamaica (G3) at Belmont Park with Raja’s Shark.
First Career Win:
April 14, 1979, at Keeneland with Joe’s Coming.
February 14, 1961 in Indianapolis, Ind.
At Keeneland (through Spring 2014):
Leading trainer during the 2014 Spring Meet with 11 wins. Won the Hilliard Lyons Doubledogdare (G3) with Sisterly Love.
Won first Keeneland race during the 1979 Spring Meet with his first starter, Joe’s Coming.
First Keeneland stakes win was the 2012 Darley Alcibiades (G1) with Spring in the Air. Won the race in 2013 with My Conquestadory.
Saddled Lexi Lou to win the 2014 Queen's Plate, Canada's most famous race.
Has won six Sovereign Awards as Canada’s outstanding trainer – 2006-2008 and 2011-2014.
2013 earnings were $8,565,108 to rank seventh among leading North American trainers. Highlights included winning the Price of Wales, the second leg of the Canadian Triple Crown, with Uncaptured and winning the Fleur de Lis (G2) with Funny Proposition.
Won his seventh straight leading trainer title at Woodbine in 2013 and eighth overall.
Has trained 10 individual Sovereign Award winners. The latest was 2013 Champion Older Female Sisterly Love. For 2012, they were Horse of the Year and champion 2-year-old male Uncaptured; 2-year-old filly Spring in the Air; and older female and female sprinter Roxy Gap. Others are 2-year-old filly Delightful Mary (2010); male dirt horse Marchfield (2008-2009); 2007 Horse of the Year and champion turf female Sealy Hill; 3-year-old filly Kimchi (2006); 2-year-old colt Added Edge (2002); and 2-old-colt Exciting Story (1999).
Most lucrative season was 2012, when he was seventh among North America trainers with $10,238,086 and 129 wins. Highlights included winning the Kentucky Jockey Club (G2) and Iroquois (G3) with Uncaptured, Hawthorne Gold Cup (G2) with Pool Play, Tampa Bay Derby (G2) and Ohio Derby (G3) with Prospective and the Prince of Wales with the filly Dixie Strike.
Won the 2011 Stephen Foster Handicap (G1) with Pool Play.
Trained Sealy Hill to become the only filly to win the Canadian Filly Triple Crown in 2007.
Posted Career Win No 1,000 race at Woodbine on Aug. 9, 2008, with maiden winner Laragh.
Leading trainer at Churchill Downs in the spring of 1988 and at Turfway Park four times – 1988 fall and holiday meets and 1989 winter/spring and fall meets.
Owns and operates Moonshadow Farm in Ocala, Fla., with his wife, Tina.
A trip in a horse van with his father, Norman Casse, to see Secretariat win the 1973 Kentucky Derby hooked Mark on racing. His father had a successful breeding operation in Indiana before moving his family to Ocala, Fla., where he established Cardinal Hill Farm. Norman retired as chairman of the board of the Ocala Breeders’ Sales in 2006 after more than 40 years involvement in the industry.
Mark’s son, also named Norman, is his top assistant.