| Abbreviation | Definition |
|---|---|
| HR | Home Run |
| I | Interference |
| IBB | Intentional Base on Balls |
| ICGS | Iowa City Girls Softball |
| ICGS | Iowa City Girls' Softball |
| IGSA | Independence Girls Softball Association |
| IGSA | Interior Girls Softball Association |
| IGSA | Irvine Girls Softball Association |
| INN | INNings pitched |
| INN | INNings played |
| ISF | International Softball Federation |
| ISPS | International Slow Pitch Softball |
| IW | Intentional Walk |
| JAS | Japanese Amateur Softball |
| JSSA | Jupiter Senior Softball Association |
| K | Strikeout |
| KCSA | Kansas City Softball Academy |
| KLBS | Katonah Lewisboro Bedford Softball |
| KSCA | Kentucky Softball Coaches Association |
| L | Line out |