Sign in

Practice run

A fresh random board every time, three respins. Nothing here counts — it is for learning what the weights do.

Practice floor Round 01 / 13 · Classic
2004-05 · on the clock
San Antonio
59–23
21 T. DuncanPF peak · IDEF 91 Choose →
9 T. ParkerPG peak · HAN 76 Choose →
20 M. GinobiliSG peak · CLU 88 Choose →
12 B. BowenSF peak · PDEF 92 Choose →
2 N. MohammedC peak · STR 80 Choose →
2 B. BarrySG peak · 3PT 80 Choose →
8 R. NesterovicC peak · STR 77 Choose →
23 D. BrownSG peak · ATH 72 Choose →
19 B. UdrihPG peak · HAN 73 Choose →
Respins

How to play

About four minutes a run. No account, nothing to install.

01
Spin

A legendary team-season lands on the board with its real nine-man rotation.

02
Choose

Pick a player, then pick one of his ratings to take. Not his best one — whichever one you want.

03
Repeat

Thirteen rounds fills all 13 attributes. Every attribute can only be taken once, so a round spent on the wrong one is gone.

04
Simulate

Your build plays an 82-game season against the rest of the pool, and the report shows which pick carried it and which one cost it.

The 13 attributes, and why position decides everything

Overall is a weighted sum, not an average. The same rating is worth wildly different amounts depending on the position you were dealt — taking three-point shooting from 70 to 96 is worth about +2.89 overall to a shooting guard and +0.89 to a centre. That gap is the game.

1.00 at SG 0.30 at C 0.90 at SG 0.45 at C 0.95 at C 0.70 at PG 0.90 at C 0.45 at PG 1.00 at PG 0.20 at C 1.00 at PG 0.40 at C 0.90 at SG 0.30 at C 1.00 at C 0.25 at PG 1.00 at C 0.20 at PG 1.00 at C 0.30 at PG 0.85 at SG 0.65 at C 1.00 at C 0.35 at PG 0.90 at PG 0.65 at C

Each row links to a full breakdown of that attribute across all five positions.

What a good run actually looks like

Measured over 40,000 drafts run through this exact engine, not guessed:

88Median overall
91Top 10% of runs
93Top 1%
41–41Median record
51.1%Reach the playoffs
0.8%Win the title

Where the field goes with its first pick:

CLU 17.1%FIN 15.6%REB 13.3%3PT 11.1%STR 10.5%

REB goes 3rd most often at 13.3% of opening picks, but averages only +1.90 overall across the five positions — 9th of 13. Position weighting is why.

See the full distribution and where your build lands →

99 team-seasons, 451 players

Every board is drawn from real rotations, 1969–2024: 1960s 1 · 1970s 5 · 1980s 12 · 1990s 19 · 2000s 25 · 2010s 27 · 2020s 10.

CHI 1995-96 Chicago 72–10 BOS 1985-86 Boston 67–15 GS 2015-16 Golden State 73–9 LA 1971-72 L.A. 69–13 GS 2016-17 Golden State 67–15 DET 1988-89 Detroit 63–19

Browse all 99 team-seasons →

Questions

Is Build a Hooper on Roblox?
No. It is a free browser game — nothing to install and no account. Several sites claim otherwise; they are wrong.
Are there codes or redeem rewards?
No. There is no code system, no currency and nothing to redeem.
Is it free?
Yes. No signup, no download, no paid tier.
How long is a run?
About four minutes: thirteen picks, then an 82-game simulation.
What are the thirteen attributes?
3PT, MID, FIN, DNK, HAN, PAS, PDEF, IDEF, BLK, REB, ATH, STR, CLU — shooting, finishing, playmaking, defence, physicals and clutch.
Why is my overall lower than my ratings?
Overall is weighted by position, not averaged. A 96 three-point rating is worth about +2.9 overall to a shooting guard and under +1 to a centre.
Is this official?
No. It is an independent fan project, not affiliated with the NBA, NBA 2K or Take-Two. The format was originated by Build-A-Bucket from @Build_A_Player.