Competitive Marathon Running

I was never a competitive runner, right? I ran for fitness. So i was never trying to win a race. My fastest marathon time was a three hours and forty minutes. That's not even fast enough to get into the boston marathon. You have to do speed work if you want to compete in the marathon. But i'm sorry, i can't really give you much specific advice ecause i'm really not an expert in that. What about lith Lithuania? How can i how to improve our pronunciation?