Data Limitations

What the records here do not cover, and why

MLS

Every game since 1996 comes from MLS's own stats: the regular season and the Cup playoffs. Leagues Cup, MLS NEXT Pro and other competitions in the same seasons are not counted.
A shootout winner is credited with the win, as MLS's 1996-1999 standings counted it; those wins are worth one point, not three.
MLS's stats do not have the playoff shootouts of 2000 to 2012. The eight that decided a game or a series come from Wikipedia.
No head coaches are on record yet, so there is no coaches page.

The season being played is shown from ESPN's public scoreboard, which can briefly differ from the league's own record of a game.
No box scores or player statistics are loaded. Records that need them — no-hitters, cycles, earned run averages, a player's game — are left out rather than shown empty, and there are no player pages.
Each league's day-by-day and week-by-week scores come from ESPN's scoreboard, which reaches back years rather than to each league's first season. "Every season, from the record" under that list has the whole history.