Masters W35 400 metres world record progressionMasters W40 400 metres world record progressionMasters W45 400 metres world record progressionMasters W50 400 metres world record progressionMasters W55 400 metres world record progressionMasters W60 400 metres world record progressionMasters W65 400 metres world record progressionMasters W70 400 metres world record progressionMasters W75 400 metres world record progressionMasters W80 400 metres world record progressionMasters W85 400 metres world record progression