Take one look at a race calendar for the spring and fall months, and you’ll find a slew of marathons worthy of adding to your competition schedule. We’re talking mass-participation events in major cities, World Marathon Majors, and smaller races that bring flair to your local running scene. And no wonder, because the ideal weather during those seasons often makes for prime racing conditions. But P.S.A.: Don’t sleep on summer marathons . From events through some of the most scenic parts of the country, to speedy races great for snagging that elusive BQ, summer offers a little bit of everything in terms of marathon experiences. Welcoming back the sunshine, greenery, and warmer weather after training through the bitterly cold winter by training for a 26.2-miler. We break down which of our top summer marathons could make for your perfect pick based on your goals and race-day preferences. For the nature lover: Want to see some wildlife and stunning views during your marathon?…