Born in Carlsbad, California, Elwin began attending pinball tournaments in 1993. He has been ranked No. 1 in the world by the International Flipper Pinball Association, which credits him with 11 victories and 19 top-4 finishes in major pinball championships—both records.
Elwin operated and repaired pinball machines in San Diego and Los Angeles.
In 2015, Elwin designed and built a homebrew pinball machine based on Archer, with a playable whitewood shown in 2016 at the Museum of Pinball. In 2017, Stern Pinball hired him as a game designer, the first of which, Iron Maiden used a layout heavily based on that of Archer. His designs are consistently ranked among the top pinball games of all time, based on the Pinside Top 100.[citation needed]
Elwin was the lead designer on these Stern Pinball games: