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How alerts work v0.6.1

Perfect Game Tracker watches live MLB games for possible no-hitters and perfect games. The dashboard can show early watches before user alerts are sent.

Watch types

  • Perfect Game Watch: the opposing team has no runs, no hits, no errors, and no baserunners credited in the watched state.
  • No-Hitter Watch: the opposing team has no hits, but may have reached base by walk, hit-by-pitch, error, or another non-hit event.

Thresholds

ItemCurrent behavior
Dashboard watch floor3+ completed defensive innings
Perfect game alert floorConfigurable. Defaults to 3+ completed defensive innings
No-hitter alert floorConfigurable. Defaults to 5+ completed defensive innings
Repeat cadenceEvery completed defensive inning after the alert floor
Ended alertSent if the watch had reached the alert threshold before ending

Completed defensive innings

The tracker counts completed defensive innings for the team carrying the watch. For example, an away team has not completed the bottom of the 6th until that half-inning is over, so a watch broken in the bottom of the 6th correctly reached through 5 completed defensive innings.

Notifications

  • Email alerts are active for confirmed accounts.
  • Web push support is prepared but not enabled as a full notification feature yet.
  • SMS is instrumented but disabled to avoid runaway messaging costs.