A three-time AMA Pro Grand National champion (2006-2008), the veteran Coolbeth has won 36 times in AMA Grand National competition, more than any active racer in the series. Coolbeth claimed three consecutive titles while racing for the Harley-Davidson Factory Team from 2006 to 2013. Aboard the Zanotti Racing Harley-Davidson XR750 in 2016, Coolbeth won at the Springfield Mile and finished seventh in points. He was named the AMA Flat Track Rookie of the Year in 1994 and won his first Grand National race in 2002.
2015 | AMA Pro GNC2 National Champion, Four wins and five additional podium results.
2014 | Coolbeth had a reemergence with the Zanotti Racing team. He won four GNC1 races, second most in the class, and recorded five additional top-five finishes. An injury suffered at Calistoga kept him from the season finale, but his points position was sealed by then any way.
2013 | Coolbeth's two Top 5s out of his eight starts were enough to earn him a fifth-place finish in GNC Expert Twins competition.
2012 | Finished 5th in the GNC Expert Twins point standings. Recorded two wins, the first of which coming at Knoxville Raceway, and then again on the last weekend of the season at LA County Fairplex.
2011 | Coolbeth had an impressive season earning wins at the Hagerstown Speedway and at the Souther Illinois Center. He also earned 13 Top 10s and five Top5s. Raced with Harley-Davidson Motor Company/Chaplin Kawasaki.
2010 | Coolbeth earned seven podium finishes, winning the Minnesota Mile in Minneapolis, MN. Raced with Screamin' Eagle Harley-Davidson/Bettencourt's Honda team.
2009 | Coolbeth won two GNC Twins events at Springfield May 23rd and Indianapolis, earning himself a total of six Top3 twins finishes. Coolbeth was injured and not able to compete at the Springfield Mile Sept. 5th round. Coolbeth placed second in the Expert Singles at Daytona Short Track March 5th. Raced with Screamin' Eagle Harley-Davidson/Bettencourt's Honda team.
2008 | Coolbeth won a third AMA Grand National Twins Championship title with six wins and four additional series podium finishes. He also earned one win in the AMA Grand National Singles Championship at Billings, MT and one additional series podium finish. Kenny entered select AMA National Hot Shoe races, earning a win at Barberville, FL in the 750/100 Expert and a win at Savannah, GA in the 450 Expert. Kenny raced with Screamin' Eagle Harley-Davidson/Bettencourt's Honda team.
2007 | Coolbeth won a second AMA Grand National Twins Championship title with six wins and three additional series podium finishes... Also won the AMA Grand National Singles Championship, earned with four podium finishes... Entered select AMA National Hot Shoe races, earning wins in the AMA 750/1000 Expert and 450 Expert races at Savannah, GA... Raced with Screamin' Eagle Harley-Davidson/Bettencourt's Honda team.
2006 | Coolbeth won the AMA Grand National Twins Championship title with three wins and three additional series podium finishes... In the AMA Grand National Singles Championship, Coolbeth earned a second-place finish at the Sept. 2, Springfield, Ill. race... Earned a podium finish in the AMA Expert Hot Shoe race at Savannah, Ga... Raced with Screamin' Eagle/Harley-Davidson/Bettencourt's Honda. His eight starts were enough to earn him a fifth-place finish in GNC Expert Twins competition