IMSA President John Doonan said that making Road America a six-hour Michelin Endurance Cup round will bring “excitement” to ...

IMSA President John Doonan discussed in further detail the changes to the 2026 WeatherTech SportsCar Championship calendar, ...

IMSA President John Doonan reflects on the record-breaking 2024 season and previews the thrilling innovations coming in 2025 during his keynote at EPARTRADE’s 5th Annual Race Industry Week.

IMSA GTP teams now use this tool to enhance their simulator sessions, enabling them to accurately replicate tire warm-up, the effects of track temperature, and how car setups influence both tire and ...

Esther and Frank had four boys, John (Loretta), George (Deceased), Ronald (Holly) and James (Monica) and were married for 53 years. After Frank’s passing in 1999 Esther married James W.