SAS

2025-26 Season

STEPHON CASTLE

San Antonio Spurs | Guard | 6-6
Stephon Castle
16.7 PPG
5.2 RPG
7.2 APG
29.8 MPG
+0.1 Impact

Castle produces at an average rate for a 30-minute workload. 3.2 turnovers per game cost 6.2 points of value nightly.

NET IMPACT BREAKDOWN
Every stat, every credit, every cost — per game average
+0.1
Scoring +10.0
Points 16.7 PPG × +1.00 = +16.7
Missed 2PT 3.9/g × -0.78 = -3.1
Missed 3PT 2.4/g × -0.87 = -2.1
Missed FT 1.5/g × -1.00 = -1.5
Creation +5.2
Assists 7.2/g × +0.50 = +3.6
Off. Rebounds 1.3/g × +1.26 = +1.6
Turnovers -6.2
Turnovers 3.2/g × -1.95 = -6.2
Defense +2.4
Steals 1.2/g × +2.30 = +2.8
Blocks 0.3/g × +0.90 = +0.3
Def. Rebounds 3.9/g × +0.30 = +1.2
Fouls Committed 2.5/g × -0.75 = -1.9
Hustle & Effort +3.9
Contested Shots 4.4/g × +0.20 = +0.9
Deflections 2.4/g × +0.65 = +1.6
Loose Balls 0.5/g × +0.60 = +0.3
Screen Assists 0.4/g × +0.30 = +0.1
Off. Fouls Drawn 0.4/g uncredited × +2.70 = +1.0
Raw Impact +15.3
Baseline (game-average expected) −15.2
Net Impact
+0.1
71st pctl vs Guards

About this model: Net Impact can't measure floor spacing, help defense rotations, or playmaking gravity — so wings and guards are slightly undervalued vs bigs. How Net Impact works

SKILL DNA

Percentile rank vs 235 Guards with 10+ games

Scoring 79th
16.7 PPG
Efficiency 73th
57.8% TS
Playmaking 96th
7.2 APG
Rebounding 90th
5.2 RPG
Rim Protection 38th
0.10/min
Hustle 78th
0.13/min
Shot Creation 50th
0% pullup
TO Discipline 4th
0.11/min

THE SEASON SO FAR

Stephon Castle’s opening stretch was defined by a maddening tug-of-war between elite downhill playmaking and crippling perimeter inefficiency. Look no further than 12/27 vs UTA. A seemingly impressive 20-point outing masked a highly detrimental shot profile that tanked his impact score to an ugly -7.0. He repeatedly fell in love with a broken jumper, missing seven of his eight three-point attempts and completely bailing out the defense. He suffered similar hidden costs during 11/14 vs GSW, posting a dismal -7.7 impact score because a series of costly offensive fouls and rookie screen-navigation mistakes erased the value of his solid rebounding numbers. Yet, when Castle actually commits to his strengths, his ceiling is terrifying. He delivered a spectacular +13.7 impact score on 10/30 vs MIA by simply orchestrating the offense with precision and hounding ball-handlers at the point of attack. If he wants to thrive as a primary initiator, he must abandon the forced jumpers and live in the paint.

A grueling, brick-heavy offensive slump defined this twenty-game stretch for Stephon Castle before a sudden, volcanic eruption flipped the script. Even when his raw point totals looked respectable, hidden costs severely dragged down his value on the floor. During the 01/19 vs UTA matchup, Castle tallied 18 points but posted a -7.6 impact score because poor defensive positioning constantly compromised his team. Things looked even bleaker during the 01/10 vs BOS contest, where he stumbled to a dismal -10.8 impact score as sloppy ball-handling and forced drives completely tanked his offensive rhythm. He occasionally flashed his true ceiling as a floor general, specifically on 01/15 vs MIL, where masterful orchestration of the pick-and-roll yielded a stellar +12.4 impact score on just nine field goal attempts. Then came the breathtaking finale on 02/07 vs DAL. Castle erupted for 40 points, 12 rebounds, and 12 assists, generating an astronomical +25.0 impact score through an absolute masterclass in scoring efficiency and defensive lockdown.

Stephon Castle spent this twenty-game stretch riding a dizzying rollercoaster as a primary initiator, oscillating between masterful orchestration and glaring offensive passivity. When he attacked with purpose, the results were devastating, peaking on 03/12 vs DEN with a spectacular 30-point, 11-rebound, 10-assist triple-double. His relentless downhill pressure constantly collapsed the defense in that contest, generating a strong +7.2 impact score. Yet, high-volume playmaking numbers frequently masked hidden costs that tanked his overall value on other nights. During the 03/14 vs CHA matchup, he tallied 15 points and 10 assists but posted an abysmal -8.7 impact because sloppy ball security and live-ball turnovers completely undermined his vision. Defenses quickly realized they could exploit his perimeter hesitance, culminating in a disastrous -18.8 impact on 03/06 vs LAC. In that brutal outing, his complete lack of scoring gravity allowed defenders to freely trap the ball-handler and blow up offensive actions, rendering his eight assists entirely hollow.

IMPACT TIMELINE

Game-by-game performance vs average. Green = above average, red = below.

PATTERNS

Boom-or-bust player. Castle's impact swings wildly relative to his average — some nights dominant, others invisible. Scoring varies by ~6 points per game.

Middle-of-the-road efficiency — shoots 45%+ from the field in 56% of games. Not automatic, but not a problem either.

Defensive difference-maker. Castle consistently forces tough shots and protects the rim — opponents shoot worse when he's guarding them.

Slight upward trend. First-half impact: -1.3, second-half: +1.5. Modest improvement — possibly settling into a rhythm.

Tends to go on runs. Longest hot streak: 5 games. Longest cold streak: 6 games.

MATCHUP HISTORY

Based on 65 games with tracking data. Shows who guarded this player on offense and who he guarded on defense, with their shooting stats in those matchups.

ON OFFENSE: WHO GUARDED HIM

His shooting stats against each primary defender this season

T. Murphy III 67.5 poss
FG% 33.3%
3P% 50.0%
PPP 0.09
PTS 6
K. Leonard 64.8 poss
FG% 50.0%
3P% 40.0%
PPP 0.17
PTS 11
A. Thompson 61.3 poss
FG% 30.0%
3P% 0.0%
PPP 0.15
PTS 9
J. Williams 52.9 poss
FG% 80.0%
3P% 100.0%
PPP 0.25
PTS 13
K. George 51.3 poss
FG% 22.2%
3P% 0.0%
PPP 0.12
PTS 6
J. Smith Jr. 50.6 poss
FG% 66.7%
3P% 100.0%
PPP 0.3
PTS 15
M. Smart 44.8 poss
FG% 25.0%
3P% 0.0%
PPP 0.07
PTS 3
FG% 60.0%
3P% 75.0%
PPP 0.37
PTS 16
J. Fears 43.3 poss
FG% 44.4%
3P% 0.0%
PPP 0.18
PTS 8
D. DiVincenzo 43.2 poss
FG% 16.7%
3P% 0.0%
PPP 0.05
PTS 2

ON DEFENSE: WHO HE GUARDED

How opponents shot when he was the primary defender. Lower FG% = better defense.

FG% 31.6%
3P% 20.0%
PPP 0.22
PTS 24
K. George 102.1 poss
FG% 45.5%
3P% 50.0%
PPP 0.17
PTS 17
L. Dončić 97.3 poss
FG% 38.1%
3P% 28.6%
PPP 0.23
PTS 22
C. Cunningham 88.4 poss
FG% 25.9%
3P% 28.6%
PPP 0.19
PTS 17
A. Thompson 80.4 poss
FG% 44.4%
3P% 100.0%
PPP 0.14
PTS 11
K. Leonard 67.3 poss
FG% 70.0%
3P% 80.0%
PPP 0.3
PTS 20
K. Durant 63.4 poss
FG% 58.3%
3P% 50.0%
PPP 0.32
PTS 20
C. Flagg 59.7 poss
FG% 41.7%
3P% 50.0%
PPP 0.22
PTS 13
T. Murphy III 50.0 poss
FG% 75.0%
3P% 50.0%
PPP 0.58
PTS 29
D. Booker 49.6 poss
FG% 22.2%
3P% 0.0%
PPP 0.14
PTS 7

SEASON STATS

65
Games
16.7
PPG
5.2
RPG
7.2
APG
1.2
SPG
0.3
BPG
47.2
FG%
33.2
3P%
73.1
FT%
29.8
MPG

GAME LOG

65 games played