R1
ITA, ITB, ITC, ITS, ITR, SSB, SSC, ST,T1, T2, T3, Spec 944, HP, GP, Pro7, SRX7
SATURDAY   SUNDAY

R2
SRF, Mazda GT2, FV, FS
SATURDAY   SUNDAY

R3
SM
SATURDAY   SUNDAY

R4
FA, FB, FC, FE, FM, ASR, CSR, DSR, S2000, CS2000, FF, CF, SF, F500
SATURDAY   SUNDAY

R5
GT1, GT2, GT3, GTL, BP, DP, EP, FP,
ITE, AS, RS, HC, SP
SATURDAY   SUNDAY