This trophy is awarded by the committee to the person who has shown the biggest improvement in the year.

2022B Hettiarachchi
2020A Sharma
2019M Cramp
2018N / A
2017N / A
2016N Sarmiento
2015A Ang
2014R Singh
2013D Wong
2012A Ang
2011S Yang
2010S Yang
2009E Yang
2008A Huang
2007D M Smith
2006D M Smith
2005E Chen
2004R Calder
2003J Noa
2002M Brimble
2001P Godfrey
2000C Hartigan
1999P Godfrey
R Harish
1998L Ah-Chee
1997P Godfrey
1996A Macfarlane
1995B Pollard
1994M Gilmour
J Sykes
1993B Giacaman
1992A Cater
1991N Easterlow
1990B Palmer
1989P Portman
1988V Smith
J Robinson
1987A Malcouronne
J Robinson
1986B Martin-Buss
1985A Malcouronne
B Martin-Buss
1984C Walker
1983C Walker
1982J Robinson
1981P Shields
1980D Body
1979M Brimble
A Hill
1978A Bent
1977P Smith-West
1976N Bridges
1975
1974J Henderson
1973N Bridges
1972
1971R Luey
1970
1969R Thomason
1968P Daly
1967P Daly
1966P Daly
1965W Frey
1964T Hollis