Close to 4,500 ran in Sunday’s Scotiabank Toronto Waterfront Marathon, with many (if not most) over 35. It was designated the World Masters Athletics Marathon Championships — the first time a 26-miler was held outside the WMA world outdoor track meet since 1975. So how many folks competed for WMA medals? Would you believe 35? Yup. Forty-three years after the first WAVA gold medals were awarded in the marathon — at Toronto worlds — runners couldn’t care less about a “world title” at Scotiabank. One reason: You had to pay an extra $110 to enter the WMA event, run concurrently…