At the bottom right is the numerical equivalent of your speed. All the events in Track and field and Hypersports show your numerical speed. In this screenshot, the player did 1023 on that jump. That's good speed. I'd say in my experience, most people, for most events, are in the 900-1200 speed range.
However, my long jump records were set with speeds over 1300. Don't get discouraged because my friend and I are freaks when it comes to Track and field and Hypersports games because we do something we call "vibrating". Very few people can do it. The technique simply involves tightening up all your muscles in your entire arm, and the strain will cause it to shake. Position your fingers at the sweet spot where the microswitch is clicking, and the speeds will be tremendous. Also note, that you are never thinking "up, down, up, down" when you do this technique. Your muscle shake is doing all of this for you, much faster than your brain can think "up down up down". You can also practice on your mouse buttons as well. You don't need a lot of shake, 2mm is plenty to trigger the microswitch.
For events like the long jump, I usually start the vibrating before my character is allowed to run. This way, I'm already up to full speed before the the starting tone signals. Usually, I get faster as the night goes on, and as my muscles warm up.
We've also noticed that each event has a slight variation on determining your speed. For example, I can reach over 1500 speed in weight lifting, but will be lucky to get over 1330 in the long jump. It's probably a software thing, because our speeds are consistent, but the event shows differently.