Kobe Bryant vs LeBron James in Chess

The Best NBA Teams Of All-Time, According To Elo
BASKETBALL 9:57 AM MAY 22, 2015

The stakes in the NBA are incredibly high. Superstar players so dominate the league that decisions on trades, draft picks and free-agent signings could gut a franchise for years or make it a perennial contender. But unlike in sports like baseball and hockey, where luck plays a larger role, in the NBA, the best team usually wins. There’s little forgiveness when a star player gets hurt, and when a team misses its first chance at a title, it may not get another.

We wanted a way to visualize each team’s ups and downs. You can find that in the form of our new interactive graphic, “The Complete History Of The NBA,” which tracks each franchise through all 63,145 games (and counting) in NBA and ABA history.1

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.2 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.

Elo ratings above 1800, which imply a team would be able to sustain at least a 67-15 record over the long term, are extremely rare. Only three teams have achieved them: the 1995-96 Chicago Bulls (whose 1853 Elo rating from June 9, 1996, is the all-time record), the 1996-97 Chicago Bulls and the 1985-86 Boston Celtics. This year’s Golden State Warriors have a chance at an 1800-plus rating, depending on how the rest of the playoffs go.

LeBron James Chess

Full article here: http://fivethirtyeight.com/features/the-best-nba-teams-of-all-time-according-to-elo/

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