Vector Training was first used in training for a marathon that takes place in what English city?
Vector training:  The first recorded usage of Vector Training was at Inverness Rowing Club in 1966, training for the Boston Rowing Marathon. Boston Rowing Marathon: The Boston Rowing Marathon is a rowing head race taking place on the third Sunday of September annually in Lincolnshire, England, over the exceptionally long distance of 49.2 km (30.6 miles).
Lincolnshire