.. As I understand 'things' {aging brains & 'synapse' connections}; If per chance, you're 'over' 50 years old, and happen to lose @ a 'g/2' game, {or perhaps, even a 'g/5' t/c}; There's a 'fair chance'..{depending on your opponents age}; That you're no more 'at fault,' than if you were to compete, and 'lose,' in a "50-to-100 yard dash," against a bunch of 20-to-30 year olds.
 
Ps. - As you 'grow' even older; Extend the 'time-limits,' you can play a 'competent' game at, accordingly! --