The 2014-15 were bad, historically bad. Not like you needed me to tell you that, the 18-64 record speaks for itself. But, how bad were they? That’s a legitimate question. Well, I have an answer for you.

ESPN’s website, FiveThirtyEight.com, ranked every team in NBA history using “Elo ratings.” I won’t try to explain what an Elo rating is, so take it away 538:

Elo ratings, the basis for the interactive, should be familiar to regular readers of FiveThirtyEight. We introduced them for the NFL last year, and they proved to be a popular feature. But we didn’t invent the idea: Elo ratings were originally developed to rate chess players and have also been used in soccer, baseball and other sports. Elo is like the iPad of sports power ratings: Their design is quite simple, and they do a lot with a little, depending only on the final score of each game and where it was played. Teams always gain Elo points after winning games — although more for upset wins and for winning by wider margins — and lose ground after losing them. They account for both regular-season and playoff games. If you want (much, much) more detail, see here. For the rest of you, here’s a quick guide on how to interpret different Elo ratings and about how many wins they’d translate into over the course of an 82-game regular season.

Basically, the lower the Elo rating, the worse the team is. So, where are our beloved 2014-15 Sixers?

The 2014-15 Sixers were ranked as the 1,429 worst team in NBA history, out of 1,482 total teams. That’s pretty damn bad. Of course, the 13-14 Sixers were also on the list, finishing at spot 1,417.

It’s interesting to see a rating system that ranks every team in NBA history, especially with how poor the Sixers have been the past two seasons.