Scotstoun hosts two ATP Challenger Tour and ITF World Tennis Tour events each year, usually in February and October.
Mr Dodds said those events would no longer be able to take place in Glasgow if the padel plan went ahead, as the full eight courts are always needed for both matches and practice.
A number of other competitions that require the full amount of current courts to be used would also be at risk, as less courts would “significantly compromise the tournament’s efficiency and quality”.
He estimated this would cost around £60,000 to the city, via money lost through direct court rental, secondary site spending and overnight accommodation.