EPOCH Basketball Stats

Home of the Best NBA Impact Metrics from 1980 to Today
Created by @PastamanHD

[EPOCH Basketball Stats @EPOCHhoops]

I am very excited to introduce EPOCH Basketball, my own brand new NBA stats website! This site provides top tier advanced stats from 1980 to today, using REAL POSSESSION-LEVEL RAPM back to 1985 to inform its impact metrics for every season.

It also has high quality single-game metrics like xPTS (the best single game value metric available), which measures the points a player added to the margin in a single game, along with Win Probability Added, and Shot Quality (based on tracking data back to 1997).

The site also predicts every game of the 2026-27 season. Players get projected box scores for each game, and a simulation of the rest of the season, updated every night, gives every team’s projected record, playoff odds and title odds. In past seasons, our pre-game win probabilities have beaten tied both ESPN and the Vegas closing line.

Each metric has been thoroughly validated against every other top-tier metric, from EPM and DARKO to xRAPM. If you think you would be interested in that, this thread will explain what each stat measures and show how it compares with the best public metrics. The full test results are on the website. (1/?)
https://t.co/SmfWCtjciW

[EPOCH Basketball Stats @EPOCHhoops]

@Drewmamba619 @J4mesH4rden4L @gfhffjff88428 @RoninDuval I'm trying to make the stats as accurate as I can, I'm not rigging it for "James Harden"

[EPOCH Basketball Stats @EPOCHhoops]

Top 25 Players in Total Playoff Impact since 1997

[EPOCH Basketball Stats @EPOCHhoops]

@__Tiduz__ He's +3.6 on defense, where did you see that?

[EPOCH Basketball Stats @EPOCHhoops]

Top 15 Seasons All-Time in Era-Adjusted Impact

[EPOCH Basketball Stats @EPOCHhoops]

@_jayskiii4 @automaticnba xwins is a player's total contribution over all of their games. XPM is impact per 100 possessions

[EPOCH Basketball Stats @EPOCHhoops]

@DunkingDynasty https://t.co/Bl7mVXMM96

[EPOCH Basketball Stats @EPOCHhoops]

Before 1996-97 there’s no public play-by-play data, but @squared2020 tracked possessions for thousands of games from 1985 to 1996 himself and calculated the players' RAPM for them, so XPM uses those in combination with players’ box scores and WOWYR calculated using every game’s minutes and final scores. The box score prior sets each player’s starting point, and the other sources move it toward measured impact in proportion to how much evidence each provides.

[EPOCH Basketball Stats @EPOCHhoops]

Tim Duncan vs Dirk Nowitzki Matchup RAPM

[EPOCH Basketball Stats @EPOCHhoops]

Michael Jordan vs LeBron James in Era-Adjusted Daily XPM

[EPOCH Basketball Stats @EPOCHhoops]

Top 15 Playoff Runs in Clutch Win Probability Added (since 1997)

[EPOCH Basketball Stats @EPOCHhoops]

Steph Curry vs LeBron James Matchup RAPM.
This stat measures two players' actual impact in the games they've played against each other using the same method as season level RAPM metrics, like XPM.

[EPOCH Basketball Stats @EPOCHhoops]

Top 25 Players in Total Playoff Impact since 1997

[EPOCH Basketball Stats @EPOCHhoops]

Look at the stats here
https://t.co/w75iIIyRLT

[EPOCH Basketball Stats @EPOCHhoops]

Top 15 Playoff Runs in Clutch Win Probability Added (since 1997)

[EPOCH Basketball Stats @EPOCHhoops]

@Scor1gam1 My data only goes back to 1980, so this is just the second half of Kareem's career.

[EPOCH Basketball Stats @EPOCHhoops]

Michael Jordan vs LeBron James in Era-Adjusted Daily XPM

[EPOCH Basketball Stats @EPOCHhoops]

This solve pools all of a player's playoff runs together, eliminating the problem that playoff metrics usually have due to small sample sizes.
https://t.co/w75iIIyRLT

[EPOCH Basketball Stats @EPOCHhoops]

@GardnerFC123 The difference is negligible and lebron technically has like 0.1 more total wins impact

[EPOCH Basketball Stats @EPOCHhoops]

Look at the list yourself
https://t.co/w75iIIyRLT

[EPOCH Basketball Stats @EPOCHhoops]

@Drewmamba619 This is just an estimate, not ground truth, and every person's definition of what makes a player "good" varies too. But there are few seasons in NBA history where a player was as successful at creating for their teammates while carrying as much of a defensive burden as 09 CP3

[EPOCH Basketball Stats @EPOCHhoops]

Before 1996-97 there’s no public play-by-play data, but @squared2020 tracked possessions for thousands of games from 1985 to 1996 himself and calculated the players' RAPM for them, so XPM uses those in combination with players’ box scores and WOWYR calculated using every game’s minutes and final scores. The box score prior sets each player’s starting point, and the other sources move it toward measured impact in proportion to how much evidence each provides.

[EPOCH Basketball Stats @EPOCHhoops]

@TrillBroDude #0

[EPOCH Basketball Stats @EPOCHhoops]

@antman021_ These are ranked by impact per 100 possessions, but in terms of total impact volume 06 Kobe is much higher up

[EPOCH Basketball Stats @EPOCHhoops]

@NBACouchside I mean the difference between 09/10 lebron and the next 4 higher season is pretty negligible.