Base Changes in the NCAA

For the upcoming 2025-26 season, the NCAA has approved the use of a double first base in Division I softball.

Here are the key details:

The rule requires a double base at first base — one white portion for the fielder and one colored (typically orange or another color) portion for the runner.

The goal: to better define a running lane from home plate to first base, reducing collisions, interference issues, and missed calls.

Division II and III will adopt this change a bit later (2026-27).

Why this is a big deal

For a sport that emphasizes safety and fairness, this rule brings a meaningful change in how first base plays out in real time. Some of the compelling reasons:

Runner-fielder interference and collisions: Historically, there have been tricky situations at first base, especially when a throw arrives and both the batter-runner and first baseman converge. With a clear runner lane and distinct base portion for the runner, it clarifies who is where and reduces contact risks.

For Umpires

Umpire clarity: Umpires now will have a cleaner view and rulebook reference for whether a runner was in the proper lane, interfering, or forced the fielder out of position. The new guideline helps standardize interpretations.

Safety and injury prevention: With less ambiguity on the base, fewer collisions = fewer injuries. That’s especially salient given the speed and athleticism in college softball today.

Slight shift in strategy and training:

Coaches will need to adjust base-running drills, teaching the correct part of the bag to run through, how to angle their approach, and how first basemen defend the white portion while staying alert for throws and splits.