Olympic show jumper Beezie Madden and the late media executive Mason Phelps, Jr. will be honoured along with last year's inductees.
In addition to world-class 5* eventing action and a CSI3* Grand Prix, LRK3DE will host Para-Dressage and Para-Jumping demonstrations.
"I was just hoping to finish in the top five today" said the US rider after jumping from 3rd to 1st with a clear stadium jumping round.
Top Canadian is Jessica Phoenix with Bogue Sound in 18th place; event wraps up with stadium jumping on Sunday.
Top Canadians in the Maryland 5* ahead of XC are Jessica Phoenix/Bogue Sound and Holly Jacks-Smither/Candy King, sitting 11th and 12th.
Top Canadian in the CCI5*-L is Jessica Phoenix with Bogue Sound; Kurt Martin (USA) leads the CCI3*-L aboard D.A. Lifetime.
The first horse inspection in Elkton saw just one horse spun; Canada has 5 entries in the 5* and 3 in the 3* going into the dressage phase.
The Israeli rider edged McLain Ward and Contagious for the victory; Canadian Mario Deslauriers rode Uris de la Roque to 4th place.
Show jumping action at the Hampton Classic in Bridgehampton, NY continued as Ward increased his lead in the $30,000 Longines Rider Challenge.
“I was coming here mostly just to go around" said the Canadian, who rode Emerson, about his first show back after the Tokyo Olympics.