Consecutive days. More than one live game per day. Every out and clock-minute counted.
What counts as a sprint
Games must be attended on consecutive calendar days (minimum of two).
A stadium must not be repeated during the sprints even if it is different teams participating.
Must average more than one game per day across the streak (3 in 2, 5 in 4, etc).
Regular or postseason major league games only; no pre-season, minor league or college.
How a sprint is graded
Grade = the share of each game you actually witnessed — outs seen vs. outs recorded for baseball, clock minutes in-seat vs. clock minutes played for other sports — averaged across every game in the sprint.