Thomas has had a very good season on the US West Coast, and finished second behind Rich Fellers in the league World Cup final.
Thomas and his holsteiner gelding Carino were consistent from the start of the 11-round league, picking up two seconds, two thirds and a fourth, among other minor placings.
If everything goes to plan for Thomas, he will be creating history with his ride; both his parents, Butch and Lu Thomas have ridden at World Cup finals.
The final is in Gottenberg, from April 24-27, and Thomas and Carino will likely be based in Europe to compete while aiming for a spot on the New Zealand Olympic showjumping team. The 30-year-old rode for New Zealand at the Athens Olympics.
New Zealand has not had a representative at the World Cup final since John Cottle and Telegraph competed in 2005. Oliver Edgecombe, winner of the 2007-2008 New Zealand league, has chosen not to go to the World Cup final.