Got my radar out for a few serves. A few years ago I served in the 80s and I've improved a lot since then. was hoping for low 100s. Now, I have a pretty big serve. It forces errors and my opponents say consistently that it's tough. Fastest serve: 88 mph had several in upper 70s and a few in the lower 80s. I only hit about 5 serves, and I think I could have gotten a little higher number, but geeze. Even the WTA players who struggle with their serves serve harder than me.