Kalendaryo ng Karera Buttonwillow Raceway Park 2027
| Petsa | Serye ng Karera | Biluhaba | Pangalan ng Kaganapan |
|---|---|---|---|
| 16 Enero - 17 Enero | CalClub - California Sports Car Club | Round 1 | |
| 20 Pebrero - 21 Pebrero | CalClub - California Sports Car Club | Round 2 | |
| 20 Pebrero - 21 Pebrero | SCCA Super Tour B Spec | Round 2 | |
| 20 Pebrero - 21 Pebrero | SCCA Super Tour Grand Touring 1 | Round 2 | |
| 6 Marso - 7 Marso | POC - Porsche Owners Club - Cup Racing Series | Round 2 | |
| 20 Marso - 21 Marso | CalClub - California Sports Car Club | Round 3 | |
| 17 Abril - 18 Abril | NASA SO-CAL - NASA Southern California Region | Round 2 | |
| 15 Mayo - 16 Mayo | CalClub - California Sports Car Club | Round 4 | |
| 22 Mayo - 23 Mayo | Lucky Dog Racing League Series | Round 7 | Doggone Buttonwillow |
| 12 Hunyo - 13 Hunyo | NASA SO-CAL - NASA Southern California Region | Round 4 | |
| 25 Setyembre - 26 Setyembre | CalClub - California Sports Car Club | Round 5 | |
| 2 Oktubre - 3 Oktubre | 24 Hours of Lemons West Region | Round 5 | Button Turrible |
| 9 Oktubre - 10 Oktubre | CalClub - California Sports Car Club | Round 6 | |
| 9 Oktubre - 10 Oktubre | POC - Porsche Owners Club - Cup Racing Series | Round 7 | |
| 16 Oktubre - 17 Oktubre | NASA NorCal - NASA Northern California Region | Round 5 | |
| 16 Oktubre - 17 Oktubre | NASA SO-CAL - NASA Southern California Region | Round 6 | |
| 5 Nobyembre - 7 Nobyembre | Xtreme Spec Racing | Round 5 | |
| 5 Nobyembre - 7 Nobyembre | Trans Am West Coast Championship | Round 6 | |
| 13 Nobyembre - 14 Nobyembre | CalClub - California Sports Car Club | Round 7 |