Age seems to impose no limit.
In his early nineties, he still sculls several times a week at home. In the 1968 summer, Theta Deut was host for a few weeks to the US Olympic Rowing Team. But it was a financial disaster for the Charge, which had badly underestimated how much the rowers would eat. To level the field and keep Reunion Row fair, the Boathouse Authorities have worked out a formula for handicapping competing shells according to age, gender, etc. Since any shell may have have a mixture of ages and genders, the formula is very complicated, requiring Higher Mathematics.