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Our NCAA Bracket Will Update Live, But Here’s Where You Can Find Our Old Data

With so much parity in the NCAA men’s basketball tournament tournament this year, one game has the potential to affect everyone else’s odds of advancing. For instance, Dayton’s upset Thursday of Ohio State gives Syracuse an easier potential opponent in the second round and raises the odds the Orange will make a deep run.

The FiveThirtyEight NCAA tournament projections will update shortly after the conclusion of each game. The forecasts will also update if there are significant new injuries during the tournament.

These updates do, however, create problems with transparency. Shouldn’t you be able to see how our original predictions did? After all, you don’t get to change your bracket after the tournament is underway.

We have a solution. If you want to see original numbers — as of Tuesday afternoon before the first “play-in” games in Dayton, Ohio — you can find them in this CSV file at GitHub.

We’ll be posting a complete archive of our updates at GitHub. The numbers included in the name of the files indicate how far through the tournament the update took place. For example, the file labeled bracket-05.csv will show our data after the conclusion of the first five games (counting Tuesday and Wednesday’s play-in matchups).

Nate Silver is the founder and editor in chief of FiveThirtyEight.

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