Blewett started racing go karts at the age of 10. In 1996, at age 22, he won the coveted NASCAR’s Northeast Regional Championship, falling only a few points shy of the National Title. During his career he recorded 96 wins between 1993 and 2007, including track championships at Flemington Speedway, Wall Township Speedway, New Egypt, as well as New Hampshire. In 2006, he was honored during the motorsports show in Atlantic City as the northeasts Winningest Pavement Driver, for that year, as tallied by Area Auto Racing News.  On August 16, 2007, while competing in a Whelen Modified race at Thompson Speedway, Blewett lost his life in a crash where he spun and was hit in the driver’s door. On August 18, 2007 Wall Township Speedway held a Special Memorial for John. Fans, family, and friends attended the Speedway to pay their final respects. On the final lap of the scheduled 40 lap modified event, 1990 NASCAR Whelen Modified Titlist Jamie Tomaino piloted the famed #76 for a solo lap in John’s honor. Three months later, at the season ending Turkey Derby, the Speedway decided to retire the #76. However, his brother can use the #76 (as he did) in the 2011 Turkey Derby at Wall, winning the Tour Type feature.  The North-South Shootout, a Tour-type Modified race held at Caraway Speedway (since 2011, previously held at Concord Motorsports Park), was renamed the John Blewett III Memorial North-South Shootout starting with the 2007 edition.