Stats: age 37, Cheshire, England.

Westwood Mariner: b. g., 16.2 hands, 10 years, Irish-bred (Cult Hero—Merryfield, Forties Field), owned by Arthur Comyn.

This pair was 13th at the Blenheim CCI*** (England) in 2009. In 2010, with Ruth Edge riding, Westwood Mariner was sixth at the Chatsworth CIC*** (England).

Stats: age 36, Marshall, Va.

Destination Known: gr. g., 16.2 hands, 13 years, U.S.-bred Thoroughbred, owned by rider.

In 2008, this pair was fourth at the Fair Hill CCI*** (Md.), then placed fifth at the 2009 Bromont CCI*** (Que.). Also in 2009, they were 10th at the Plantation Field CIC*** (Pa.). This spring, they placed 11th in the Red Hills CIC*** (Fla.) and third in a division of advanced at Southern Pines II (N.C.).

Stats: age 29, Tottenham, Ontario.

Kachemak Bay: dk. b. g., 16 hands, 17 years, Canadian-bred Thoroughbred (Prosperus—Gladring), owned by rider.

This pair was fourth at the 2009 Jersey Fresh CCI*** (N.J.). This spring, they placed 14th at Pine Top Spring (Ga.).

Stats: age 61, East Fallowfield, Pa.

UN: br. m., 16 hands, 16 years, Irish-bred Irish Sport Horse (Cavalier Royale—Never Ever), owned by rider.

Last year, this pair completed the Rolex Kentucky CCI**** and was ninth at the Fair Hill CCI*** (Md.). In 2008, they completed Rolex Kentucky and the Fair Hill CCI***. This spring, they were fourth in a division of advanced at Pine Top Spring (Ga.).

Stats: age 37, Scottsville, Va.

Tipperary Liadhnan: gr. g., 17 hands, 14 years, Irish-bred Irish Draught (Fast Silver—Gypsy Star), owned by rider.

This pair was fifth at the 2008 Rolex Kentucky CCI**** and 24th there in 2010. Last year, they also placed fourth at the 2010 Bromont CCI*** (Que.), were second in a division of advanced at Richland Park (Mich.), and were fourth in the advanced at the Land Rover USEA American Eventing Championships (Ga.). This spring, they placed third in a division of intermediate at Pine Top Winter II (Ga.).