Privacy
Next Inning is a game-day fielding rotation tool for youth baseball coaches. This page says what it stores and why. Last updated September 22, 2026.
What we store
About coaches. The email address you sign in with; if you use Google sign-in, the name Google shares with us; and whatever you choose to add on the Account page: a display name, your full name, a phone number. We use them to know which teams you belong to and to show your fellow coaches who is running a game or made a change. Only the coaches on your teams and the admins of your league see them, and you can clear them at any time.
About players. As little as the app can work with: a first name and last initial, a jersey number, and the eligibility flags a coach sets (can pitch, can catch, cleared for first base, prefers infield). No birth dates, photos, contact details, or anything else. Eligibility flags are visible only to the team's coaches and league admins.
About games. Attendance, the fielding lineup each inning, pitch counts, hit batters, walks, and who on the staff made each change. This is what the rotation and pitch-count rules are built on.
What we do not do
- No tracking across other sites, and no selling or sharing of personal data with anyone.
- Nothing is public unless a manager chooses it. Every screen needs a signed-in coach on that team or an admin of its league. The one exception is the season link a manager can turn on for parents: anyone with that address sees the team's lineup, its last game and its next dates, with player names and numbers only, no flags and no coach details. The manager can replace or turn off the link at any time, and search engines are told not to index it.
- Google sign-in is used only to confirm your email address. We do not read your contacts, calendar, or anything else in your Google account.
Where it lives
Data is stored with Supabase (database and sign-in) and served by Vercel, both in the United States. A copy of your team's games is kept on your own phone so the app works with no signal. Basic, anonymous page-view counts come from Vercel Analytics.
Deleting things
A manager can archive or remove players, delete games, and delete the team from the Team tab. A league admin can delete teams and admins from the League page. To delete your account, tap the person icon in the header and use Delete my account on the Account page: it removes your sign-in and takes you off every team at once. Signing out wipes the copy of your team's data from that phone.
Questions
Email login@diamondmapper.com.