The NAPA Auto Care 150 (known as the NAPA Auto Care 150 Greg Biffle Memorial) is an ARCA Menards Series West stock car race held annually at Tri-City Raceway in West Richland, Washington. Cole Denton is the defending winner of the race.
History The West Series first visited Tri-City in 1968, when Ray Elder drove his 1967 Dodge to victory. The West Series visited Tri-City infrequently in the years that followed, with competitors like Jim Cook, Jack McCoy, Roy Smith, Dirk Stephens, Mike Chase and Jason Jefferson securing victories at the half-mile tri-oval.
In 2024, the race was added back for the first time since 2003 and NAPA Auto Care became the title sponsor of the race.
Past winners Year Date Driver Team Manufacturer Race Distance Race Time Average Speed(mph) Report Ref Laps Miles (km) 1968 August 1796 Ray Elder Elder Racing Dodge10050 (80.47)0:44:5266.865 Report 1969 July 518 Jim Cook Bob Bristol Ford10050 (80.47)0:43:3068.695 Report 1970 September 496 Ray Elder (2) Elder Racing (2) Dodge (2)10050 (80.47)0:38:4177.553 Report1971Not held 1972 May 267 Jack McCoy Ernie Conn Dodge (3)15075 (120.70)0:55:0081.818 Report1973 - 1988Not held 1989 July 879 Roy Smith Razore Racing Ford (2)200100 (160.93)1:26:3869.458 Report 1990 September 3079 Roy Smith (2) Razore Racing (2) Ford (3)200100 (160.93)1:46:1856.721 Report1991 - 1992Not held 1993 September 420 Dirk Stephens Tom Craigen Ford (4)200100 (160.93)1:29:2067.189 Report 1994 September 350 Mike Chase John Strauser Chevrolet200100 (160.93)1:31:4965.348 Report1995 - 2002Not held 2003 June 2197 Jason Jefferson Samuel Roebuck Pontiac15075 (120.70)1:00:2074.586 Report2004 - 2023Not held 2024 August 1013 Tyler Reif Central Coast Racing Toyota15075 (120.70)1:10:4163.664 Report 2025 August 971 Kyle Keller Jan's Towing Racing Ford (5)15075 (120.70)1:09:3364.702 Report 2026 June 671 Cole Denton Jan's Towing Racing (2) Ford (6)15075 (120.70) Report
Manufacturer wins # Wins Make Years won 6 Ford 1969, 1989–1990, 1993, 2025–2026 3 Dodge 1969, 1970, 19721 Chevrolet 1994 Pontiac 2003 Toyota 2024
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