How long does it usually take to get to the next level, 4.0? I have seen and played with so many people that are in the 3.5 level on outdoor public or community courts. It seems to me that 80% of tennis players stuck at this level. I really do not want to be one of them forever. I am in my late 20’s. I visit tennis courts about 3 to 4 times, 5 to 8 hours a week, playing matches, practicing baseline rallies, and working on my serves. Is it enough? It really bugs me some time, when I feel that I will be at 3.5 level forever, or for couple of years. I want to see result, 4.0, 4.5. Is it possible to get to 4.5 or 5.0 level, if you started playing tennis after college and could not play more than 10 hours a week? Thank you!