They have the mental game won before the race starts. They have much more incentive than you - there is nothing an "old" woman likes more than beating someone younger - and if they are male, it's a double whammy.
Why would they have more time to train? Surely you would think they must be knitting, looking after grandchildren, baking cakes in case their younger pernickity relatives come and see them, gardening, planning their retirement in Eastbourne, drinking sherry etc etc.
SR :-O