The IMSA WeatherTech SportsCar Championship will go in an expected direction next season by trimming its five-class structure to four with the reassignment of LMP3 (main image) to its former role as a formula reserved for IMSA’s developmental series.

Having been elevated to the WeatherTech Championship in 2021 as a stop-gap measure to bolster the series’ declining DPi and LMP2 fields, LMP3 has served its purpose by adding a healthy number of entries—11 cars have taken part in this year’s races—to amplify the grid.