alleygorithm
player impact + groups
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alleygorithm
player impact and winning groups

Player, pair, and lineup impact measured from every NBA possession.

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WPA-powered analytics from play-by-play data
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Player impact + chemistry

See who actually drives wins and which players work together.

Alleygorithm measures NBA player impact, pair chemistry, and lineup context from every possession of the last three seasons.

How it works·Pricing
Try it on the Lakers
Use case 1

Who's actually driving wins?

Start from the player board, then open any player page for percentile, offense and defense split, and game-by-game context.

Live example
Shai Gilgeous-Alexander
100th percentile · OKC
+7.4
Open player board
Use case 2

Which players genuinely work together?

Measure pair and lineup chemistry by comparing actual on-court output with what you'd expect from the individual players.

Live example
Shai Gilgeous-Alexander + Chet Holmgren
5,296 possessions
Surplus
-0.012
Open groups
Use case 3

Where does their impact actually come from?

Open a player page to move from total wins into offense, defense, pair results, and game-by-game context.

Start here
Shai Gilgeous-Alexander
O+0.045D+0.064
A+
Open a player page
What we do not do

Alleygorithm is not a prediction tool. We do not project tonight's game or player props. We measure what already happened so you can study impact and chemistry with context.

Change the range

Returning users can switch between current season, recent form, and longer context here.

What Changed

Biggest recent movers on the board

These cards stay fixed to Last 30 days vs Current season so you can see who is really moving, independent of the range control above.

See who's rising
Player riser
Jarace Walker
IND · up 20th percentile read
+20 pctile
Recent delta+0.045
-0.004 in Last 30 days on 702 effective poss
Pair riser
Andrew Nembhard + Ben Sheppard
88th percentile · medium confidence
+85 pctile
Recent delta+0.016
+0.004 across 219 effective poss
Team riser
Indiana Pacers
Top rotation driver: Jay Huff
IND
Recent delta+0.006
-0.001 rotation impact with 9 players in the core
Offense and defense leaders

Estimated wins is the first read. These leaders show where that value is coming from on offense, on defense, and across both sides at once.

See full player board
Best offense
A+
Shai Gilgeous-Alexander
Shai Gilgeous-Alexander
OKC logo
OKC
Est. wins+7.4
O+0.045D+0.064

Creates the strongest positive impact with the ball.

Best defense
A+
Shai Gilgeous-Alexander
Shai Gilgeous-Alexander
OKC logo
OKC
Est. wins+7.4
O+0.045D+0.064

Creates the strongest positive impact on defensive possessions.

Best two-way
A+
Shai Gilgeous-Alexander
Shai Gilgeous-Alexander
OKC logo
OKC
Est. wins+7.4
O+0.045D+0.064

Maintains positive value on both sides instead of leaning one-way.

Volume vs. value

Who drives winning with their minutes?

Possessions on the floor versus estimated wins added. Top-right is the sweet spot: heavy minutes and positive impact. Dot size scales with total wins added.

Full player board →
High confidenceMediumLow|Larger dot = more wins added|Dashed line = median possessions
Impact Archetypes

Who leads each role?

Role-decomposed impact from every possession. Each player's value broken down by what they actually do — score, pass, rebound, or protect the rim.

Best Scorer
Deni Avdija
Deni Avdija
POR logo
POR
Highest impact when making shots
+0.37 wins
Best Playmaker
Nikola Jokić
Nikola Jokić
DEN logo
DEN
Highest impact when creating for others
+2.10 wins
Best Rebounder
Jalen Duren
Jalen Duren
DET logo
DET
Highest impact on the defensive glass
+0.21 wins

Top pairs driving winning

Estimated wins first, with Off/Def shape visible and impact rate kept secondary.

#2
Shai Gilgeous-Alexander + Chet Holmgren
5,296 possessions · high confidence
A+
Est. wins
+1.2
Impact / 100
+0.023
O+0.026D+0.025
#9
Shai Gilgeous-Alexander + Luguentz Dort
5,697 possessions · high confidence
A+
Est. wins
+1.1
Impact / 100
+0.019
O+0.018D+0.023
#17
Duncan Robinson + Ausar Thompson
5,793 possessions · high confidence
A+
Est. wins
+1.1
Impact / 100
+0.018
O+0.021D+0.019
#5
Shai Gilgeous-Alexander + Cason Wallace
5,336 possessions · high confidence
A+
Est. wins
+1.0
Impact / 100
+0.019
O+0.022D+0.021
#4
Jalen Duren + Ausar Thompson
5,263 possessions · high confidence
A+
Est. wins
+1.0
Impact / 100
+0.020
O+0.021D+0.023
#23
Duncan Robinson + Jalen Duren
5,786 possessions · high confidence
A+
Est. wins
+1.0
Impact / 100
+0.018
O+0.020D+0.019
#10
Julian Champagnie + Victor Wembanyama
5,349 possessions · high confidence
A+
Est. wins
+1.0
Impact / 100
+0.019
O+0.020D+0.020
#71
Jamal Murray + Nikola Jokić
7,539 possessions · high confidence
A+
Est. wins
+1.0
Impact / 100
+0.013
O+0.011D+0.016
#7
Luguentz Dort + Chet Holmgren
5,048 possessions · high confidence
A+
Est. wins
+1.0
Impact / 100
+0.019
O+0.021D+0.021
#16
Ausar Thompson + Tobias Harris
5,113 possessions · high confidence
A+
Est. wins
+0.9
Impact / 100
+0.018
O+0.022D+0.019
#8
Chet Holmgren + Cason Wallace
4,930 possessions · high confidence
A+
Est. wins
+0.9
Impact / 100
+0.019
O+0.022D+0.020
#22
Cade Cunningham + Ausar Thompson
5,170 possessions · high confidence
A+
Est. wins
+0.9
Impact / 100
+0.018
O+0.020D+0.019
#18
Jalen Duren + Tobias Harris
4,896 possessions · high confidence
A+
Est. wins
+0.9
Impact / 100
+0.018
O+0.021D+0.020
#29
Victor Wembanyama + Stephon Castle
5,239 possessions · high confidence
A+
Est. wins
+0.9
Impact / 100
+0.017
O+0.017D+0.020
#34
Duncan Robinson + Tobias Harris
5,209 possessions · high confidence
A+
Est. wins
+0.8
Impact / 100
+0.016
O+0.020D+0.017
#PairEst. wins Off / Def Impact / 100 Poss Grade
1
Shai Gilgeous-Alexander
Chet Holmgren
+1.2O+0.026D+0.025+0.023
5296
A+
2
Shai Gilgeous-Alexander
Luguentz Dort
+1.1O+0.018D+0.023+0.019
5697
A+
3
Duncan Robinson
Ausar Thompson
+1.1O+0.021D+0.019+0.018
5793
A+
4
Shai Gilgeous-Alexander
Cason Wallace
+1.0O+0.022D+0.021+0.019
5336
A+
5
Jalen Duren
Ausar Thompson
+1.0O+0.021D+0.023+0.020
5263
A+
6
Duncan Robinson
Jalen Duren
+1.0O+0.020D+0.019+0.018
5786
A+
7
Julian Champagnie
Victor Wembanyama
+1.0O+0.020D+0.020+0.019
5349
A+
8
Jamal Murray
Nikola Jokić
+1.0O+0.011D+0.016+0.013
7539
A+
9
Luguentz Dort
Chet Holmgren
+1.0O+0.021D+0.021+0.019
5048
A+
10
Ausar Thompson
Tobias Harris
+0.9O+0.022D+0.019+0.018
5113
A+
11
Chet Holmgren
Cason Wallace
+0.9O+0.022D+0.020+0.019
4930
A+
12
Cade Cunningham
Ausar Thompson
+0.9O+0.020D+0.019+0.018
5170
A+
13
Jalen Duren
Tobias Harris
+0.9O+0.021D+0.020+0.018
4896
A+
14
Victor Wembanyama
Stephon Castle
+0.9O+0.017D+0.020+0.017
5239
A+
15
Duncan Robinson
Tobias Harris
+0.8O+0.020D+0.017+0.016
5209
A+
See all pairs

Individual impact

Estimated wins added with offensive and defensive split

1
Shai Gilgeous-Alexander
OKC logo
OKC
O+0.045D+0.064
+7.4A+
2
Chet Holmgren
OKC logo
OKC
O+0.044D+0.052
+5.6A+
3
Julian Champagnie
SAS logo
SAS
O+0.042D+0.037
+5.5A+
4
Donte DiVincenzo
MIN logo
MIN
O+0.036D+0.031
+5.4A+
5
Ausar Thompson
DET logo
DET
O+0.042D+0.050
+5.1A+
6
Nikola Jokić
DEN logo
DEN
O+0.028D+0.034
+4.7A+
7
Amen Thompson
HOU logo
HOU
O+0.018D+0.032
+4.4A+
8
Dyson Daniels
ATL logo
ATL
O+0.019D+0.028
+4.1A+
9
Desmond Bane
ORL logo
ORL
O+0.009D+0.035
+4.1A+
10
Devin Vassell
SAS logo
SAS
O+0.022D+0.041
+3.8A+
See all players

Observed lineups

Best 5-man groups by estimated wins added, with Off/Def context

#1
Miles Bridges
LaMelo Ball
Moussa Diabaté
Brandon Miller
Kon Knueppel
Miles Bridges · LaMelo Ball · Moussa Diabaté · Brandon Miller · Kon Knueppel
2,172 possO+0.260D+0.255Surplus +0.121
A++5.6
Est. wins added
#2
Duncan Robinson
Cade Cunningham
Jalen Duren
Ausar Thompson
Tobias Harris
Duncan Robinson · Cade Cunningham · Jalen Duren · Ausar Thompson · Tobias Harris
2,256 possO+0.229D+0.162Surplus +0.035
A++4.5
Est. wins added
#3
Nickeil Alexander-Walker
Onyeka Okongwu
Jalen Johnson
Dyson Daniels
CJ McCollum
Nickeil Alexander-Walker · Onyeka Okongwu · Jalen Johnson · Dyson Daniels · CJ McCollum
1,844 possO+0.197D+0.185Surplus +0.101
A+3.6
Est. wins added
#4
Josh Okogie
Alperen Sengun
Jabari Smith Jr.
Amen Thompson
Kevin Durant
Josh Okogie · Alperen Sengun · Jabari Smith Jr. · Amen Thompson · Kevin Durant
1,638 possO+0.147D+0.191Surplus +0.090
A+3.0
Est. wins added
#5
Duncan Robinson
Jalen Duren
Ausar Thompson
Daniss Jenkins
Tobias Harris
Duncan Robinson · Jalen Duren · Ausar Thompson · Daniss Jenkins · Tobias Harris
749 possO+0.395D+0.459Surplus +0.229
A++3.0
Est. wins added
See all lineups