We just went a couple of weeks ago to see the Rays play the Red Sox. I would plan on a good hour and a half as stated above, but we then waited another hour plus when we got off I-275 to park. Luckily we planned on getting there a couple of hours early, but only got in about 20 minutes before game time. Stadium was right in sight but we hardly moved in over an hour, and I never saw any evidence of any type of accident. It was a very frustrating because I kept thinking "Disney parks more cars then this every day at each of their parks without a problem, and we can't even move 10 feet." Finally gave up on the stadium parking and paid to park in a lot not too far away. The game was fun though, good seats for a minimum compared to Fenway Park. (And even Fenway in the city can keep traffic moving much better.) Just plan accordingly.