This topic is very relevent to me as this is something my kid is working through (2021 grad). His best 60 was a 7.69 this fall but he is consistently in the 7.8 range and currently working hard at improving. He wants to be able to stick at 3B and not just be a 1B/DH
The difference between a 7.4 60 and a 7.9 60 is a 0.1 split per 10 yards. Assume a 1.9 first 10 yards and a 1.1 split for every ten yards after that is a 7.4 60 and a 1.2 split per 10 is a 7.9 ... Shave a 0.1 off the start and that's a 7.3 ---- that's the formula we're working with and is very doable with hard work... You have to really stick with it and be mindful of those splits. My kid works a lot on running 20's & 30's these days... The weight room is a big factor, too