I've been playing long toss with my son for the past three weeks. The majority of his baseball pals have already begun school, so he's stuck with his old man that can barely toss beyond 150FT (50 yard line) now before the bucket of balls comes into play. The wind, elevation, humidity, etc...has been mentioned regarding the effect on distances, but the type of baseballs thrown come into play too. I've noticed that he can grab one ball out of the bucket and chuck it 315+ feet, and grab the next one and toss it 285. When you're playing long toss with balls that are also used for batting practice, you never know what you'll get? FWIW, his college pitching coach emailed the incoming/returning pitchers, and his suggested program was to throw four days a week (3 days long tossing, incl. hat drill, some flat ground work, and 1 day per week in the pen). I'll be going out to the football field with him later this afternoon for our last LT session. He'll rest on Thursday, and have one more 40 pitch bully on Friday before the bored kid finally leaves for school this weekend.