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- Kalitta, Scott (1962–2008), NHRA Full Throttle Drag Racing 2008 NHRA Lucas Oil Supernationals Qualifying Nitro Funny Car Englishtown, NJ
- Kalla, Ken (1948–1983), ARCA 200, Talladega
- Kazato, Hiroshi (1949–1974), Fuji Grand Champion race, Fuji Speedway, collision with Suzuki
- Keech, Ray (1898–1929), AAA race, Altoona
- Keller, Al (1920–1961), USAC Championship Car race, Phoenix
- Kesjár, Csaba (1962–1988), Norisring Formula 3 practice, Nuremberg
- Key, Johnny (1924–1954) Midgets, Cincinnati Race Bowl
- Kimmel, Billy (1979–2007), 410 Sprint Car, Williams Grove Speedway
- Kite, Harold (1921–1965), NASCAR National Series race, Charlotte
- Knotts, Ricky (1951–1980), NASCAR WCP qualifying race, Daytona
- Koinigg, Helmuth (1948–1974), US GP, Watkins Glen
- Krosnoff, Jeff (1964–1996), Molson Indy CART race, Toronto
- King, Steve (1973–2006), Knoxville Nationals Knoxville, Iowa (Sprint Car)
Read more about this topic: Driver Deaths In Motorsport