Build a Baseball Live Scores & Game Center

Baseball data model

Structure your data around baseball-specific entities: leagues, teams, players, games, and inning-by-inning scores.

• Leagues: MLB, NPB, KBO with season dates
• Teams: Name, logo, venue, roster
• Games: Date, status, home/away teams, venue
• Scores: Runs per inning, total R/H/E

The /baseball/live endpoint

Fetch all currently live baseball games grouped by league:

Live game data structure

Ingestion cadence for baseball

• Pre-game: Refresh every 30 minutes for lineup changes
• During at-bats: Poll every 10-15 seconds for live action
• Between innings: Poll every 30-60 seconds
• Post-game: Final stats available immediately after last out

Building the baseball line score

Create the classic baseball scoreboard showing innings 1-9 (plus extras) with R/H/E:

Detecting current inning

Caching layers

• CDN: Cache team logos and static assets indefinitely
• Edge KV: Store live game summaries for 10-second reads
• Application: Cache /baseball/games response for schedule data

UI patterns for baseball

• Sticky header with current score and inning indicator
• Inning-by-inning breakdown with current inning highlighted
• R/H/E display in traditional baseball format
• Team logos and colors for quick identification
• Extra innings section that expands as needed

Score change animations

Flash or highlight score changes when runs are scored. Use subtle animations to draw attention without being distracting.

Accessibility

• Announce score changes to screen readers
• Use high contrast colors for score displays
• Provide text alternatives for team logos
• Ensure keyboard navigation for game selection