P4 500cc & Unlimited P5 500cc & Unlimited Race 3 – Historic Winton 2016 Bikes P4 500cc & Unlimited P5 500cc 600cc & Unlimited Race 4 – Historic Winton 2016 Bikes P4 up to 350cc & 5 up to 350cc – Historic Winton 2016 Bikes P4 up to 350cc & P5 up to 350cc Race 4 – Historic Winton 2016 Bikes Parade Laps or Extra Practice 12.20pm Sunday – Historic Winton 2016 Bikes Sidecars Race 3 – Historic Winton 2016 Bikes Sidecars Race 4 Handicap Event – Historic Winton 2016 Bikes