By asasuper 
| Year | Winner(s) |
| 2018 | Keith Essex |
| 2019 | Russ Owens |
| 2020 | Cancelled |
| 2021 | Al & Susan Simmons |
| 2022 | Russ Owens |
| 2023 | Bob Caldwell |
| 2024 | Clemens Ceipek |
| 2025 | Clemens Ceipek |
The Williams Trophy replaced the Stevenson Trophy as the space for inscription was full.
To see a map of the flights made by Clemens in the 2025 event click here.
The trophy is currently awarded at the Parowan Camp to the pilot who scores the best results in four different categories:
By asasuper 
| Year | Winner(s) |
| 1988 | David Stevenson |
| 1989 | Don Pollard |
| 1990 | David Stevenson |
| 1991 | David Stevenson |
| 1992 | Ernesto Estrada |
| 1993 | Ed Shilen |
| 1994 | Ed Shilen |
| 1995 | David Volkman |
| 1996 | Rick Howell |
| 1997 | |
| 1998 | David Volkman |
| 1999 | David Goggins/Rick Howell |
| 2000 | Rick Howell |
| 2001 | Bernie Gross/Rick Howell |
| 2002 | Jim Walsh/Rick Howell |
| 2003 | John Lubon |
| 2004 | Ed Salkeld |
| 2005 | Bill Gawthrop |
| 2006 | |
| 2007 | Bill Gawthrop |
| 2008 | Bill Gawthrop |
| 2009 | Bill Gawthrop |
| 2010 | Bill Gawthrop |
| 2011 | Bill Gawthrop |
| 2012 | Russ Owns |
| 2013 | Ed Salkeld |
| 2014 | Russ Owens |
| 2015 | Russ Owens |
| 2016 | Rolf Siebert/Mike W??? |
| 2017 | Susan Simmons/Al Simmons |
The Stevenson trophy was retired as it no longer had space for new inscriptions. It was replaced by the Williams Trophy. The plaque is now held by the Stevenson family.
By asasuper 
Tom believes in "telling it like it is". Do not expect any pandering to liberal wokeness.
Liberal elitetist based in Boulder Colorado
Contest Manager and 'Man About Town'
By asasuper Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc pharetra euismod enim, ac ultricies nunc fringilla nec. Nulla cursus commodo risus, quis consectetur risus commodo fringilla. Fusce sapien urna, ornare sit amet pulvinar nec, sodaltes sed nunc.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc pharetra euismod enim, ac ultricies nunc fringilla nec. Nulla cursus commodo risus, quis consectetur risus commodo fringilla. Fusce sapien urna, ornare sit amet pulvinar nec, sodaltes sed nunc.
Page 4 of 4