Mark Casse operates a public stable based at Woodbine Race Track in Toronto April through December, and Fair Grounds Race Track in New Orleans December through March. As part of the comprehensive program offered by Casse Racing, Mark maintains two private training and rehab facilities Moonshadow Farm South, in Ocala and Moonshadow Farm North, in Loretto, Ontario.

In 2006, the Casse Racing team enjoyed remarkable success. Setting career records in earnings and stakes winners and had five Sovereign Award nominations, as well as starters in the Breeders' Cup, Kentucky Oaks, and Kentucky Derby. Mark finished the year atop the trainer standings in earnings at Woodbine and secured a Sovereign Award as Outstanding Trainer.

The success continued in 2007. A year which saw Marchfield, win the $500,000 Breeders' Stakes, and Sealy Hill, a Eugene Melnyk homebred, become the first filly to win the Canadian Triple Tiara since the series was inaugurated in 1999. In the GR.III Natalma Stakes Casse's three entrants swept the top three spots. Mark topped the trainer standings again, by wins, and again secured the Sovereign as Outstanding Trainer.

2007 Sovereign Awards
Outstanding Trainer
Sealy Hill Horse of the Year
Sealy Hill Three-year-old Filly
Sealy Hill Turf Female

Woodbine Trainer Standings
current standing : 1

Leader in wins - 35
Leader in money earned - $2,729,104


NTRA North Amercian Traniers 2008
current standing: 22