In high school, I threw the following pitches...
2-seam fastball (tails in on righties)
4-seam fastball
slurve
circle-changeup
In college (Eckerd College '00 - '03) and summer leagues (Great Lakes League '00 and '01), I developed a slider to replace the sluve and started throwing a splitter.
Now I still play in mens baseball leagues (Clearwater, Florida MABL League) and throw both fastballs, slider and change. The split causes too much stress on my elbow and I'm plenty effective without it.
I attached a cool blurred effect pic of me pitching from my college days.
Glad to see so many talented ballplayers on the forum.
- Fletch