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Cal Club Hoosier Super Tour

EVENT RESULTS

Feb 20 to 21, 2026

Buttonwillow Raceway Park

— 24551 Lerdo Hwy, Buttonwillow, CA, 93206-9779

HOSTED BY: Cal Club Region

EVENT DETAILS

The Hoosier Racing Tire SCCA^® Super Tour (HST) gets rolling in 2026 with its annual visit to Buttonwillow Raceway Park, located in the southern portion of California’s Central Valley alongside Interstate 5 between San Francisco and San Diego. The two-day meetup will traverse the 2.579-mile, 10-turn course known as The Circuit at Buttonwillow Raceway Park. This will be only the second year that layout has been used for HST competition, and SCCA’s Cal Club Region is excited to host another fantastic weekend of racing and fun.

IMPORTANT LINKS + DOCS

Upload Your Photos & Videos

Race Director’s Briefing

Class Ambassador Briefing

Track Map – The Circuit

Track Records – The Circuit at Buttonwillow

Social Media Graphic

Requirements

Flagtronics Firmware Update Guide

Flagtronics Download Page

Flagtronics Display Video Tutorial

Flagtronics Display Information

Rules

Buttonwillow HST Supps

Cal Club Region

Buttonwillow Raceway Park

Schedule

2026 February Buttonwillow Super Tour- Schedule- rev 2-13-2026

Group Information

class: Group 1: EP, FP, HP, B-Spec

class: Group 2: SM, SMX

class: Group 3: FF, FV, F6

class: Group 4: SRF3

class: Group 5: STL, STU, T3, T4

class: Group 6: FA, FC, FE2, P, P2

class: Group 7: GT1, GT2, GTX, AS, T1, T2

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