Fastpitch Signal

Data sources & methodology

Fastpitch Signal organizes publicly available NCAA Division I softball scores, team identities, and conference memberships. It is an independent reference site and is not affiliated with the NCAA.

Scores last imported

September 12, 2026 5:06 PM UTC

Ratings last calculated

September 12, 2026 5:31 PM UTC

Team catalog last refreshed

September 10, 2026 1:55 AM UTC

Scores and schedules

Daily scoreboards are imported from the NCAA’s Women’s Softball contest data. Each game is stored using the NCAA contest identifier, so importing the same date again updates the existing game instead of creating a duplicate.

NCAA softball contest data

Teams and conferences

The NCAA Women’s Softball RPI page supplies the active Division I team catalog and conference membership. A confirmed source alias connects score-provider team names to the canonical team record.

NCAA Women’s Softball RPI

MAAC: Mapped to Metro Atlantic Athletic Conference (Metro).
WAC: Mapped to United Athletic Conference (UAC) following the 2026 rebrand.

Coverage and limitations

Only dates that have been imported appear on the public scoreboard and team schedules.
Source corrections can change a game’s score or status on a later import.
Postponed, cancelled, unfinished, neutral-site, and doubleheader games are retained when the NCAA source provides them.
Team and conference corrections are reviewed against source evidence before they become public.

ISR-style ratings

Fastpitch Signal’s isr-v1 model compares completed Division I game results using opponent strength and a capped scoring margin. Scheduled, postponed, cancelled, unfinished, TBA, inactive-team, and explicitly excluded games do not count.

Every active team begins at 100. For each game, the scoring-margin value is capped at 10 runs: 1 + (capped margin − 1) / 9. The model repeatedly combines 25% of the 100-point baseline with 75% of each team’s opponent-adjusted game performance, using a 10-point result scale, until changes are below 0.0001 or 100 iterations have run. Teams with fewer than 10 eligible games are labeled provisional.

The latest run used 7829 eligible games through June 30, 2026. Its formula version and source-game fingerprint are stored with the immutable rating snapshot so the result can be reproduced after future source corrections.