NBA SIM
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Simulation workspace

Build a matchup.
See the whole distribution.

Set the rotation, choose the simulation depth, and run the same calibrated engine used by the command line. Every run receives a fresh seed automatically and keeps it in the result.

Away current roster —
Out · cap
Home current roster —
Out · cap
STAT = official prior-season profile · PRIOR = modeled baseline
Fresh seedGenerated on run

Ready when you are

No result yet

Configure the matchup and run a simulation.

Official point-in-time slate

The schedule,
as it actually exists.

Forecast published games from the official NBA feed. Injury reports are matched to current player IDs; uncertain statuses become explicit availability scenarios inside the distribution.

Reading the official schedule snapshot…

2026–27 feed

Published games

Availability-aware forecast

Choose a published game

Each forecast receives a fresh reproducible seed and runs 1,000 calibrated scenarios.

Full regular season

One click.
All 1,230 games.

Simulate a complete 30-team, 82-game NBA season with the same possession engine as Matchup Lab. Each matchup is played once, preserving the upsets and variance of a real season. Browse every result and its native event-built player box score.

2026–27 regular season

Ready to tip off

Exact 41-home / 41-away balance, NBA opponent frequencies, chronological rating updates, and one complete possession-level game for every scheduled matchup.

30Teams
82Games each
1,230Box scores

Front office · phase three

A league that
remembers everything.

Begin from the current 2026–27 roster universe. Every calendar move is saved as a verifiable event, and any decision point can become an independent branch without changing the original. The official cap ladder, apron transaction gates, and uncertainty-aware player development are available in dedicated workspaces.

Create your universe

Take control

Create the canonical league, current rosters, calendar, durable save, and event ledger. Phase three adds official-age lifecycle baselines and multi-season development scenarios.

Fresh seedPermanent league identity

Long horizon

Season and series.

Run small round robins or a complete best-of series. Every run is fresh; its seed remains attached to the completed result.

Round robin

Season simulator

01

Choose 2–30 teams. Two repeats gives each matchup one game at each home court.

Fresh seedGenerated on run

Playoffs

Series simulator

02

Uses a 2–2–1–1–1 home-court pattern for best-of-seven series.

Fresh seedGenerated on run

Competition results

Your standings or series ledger will appear here.

Calibration

Model health.

Compare simulated league ecology with the bundled 2023–24 source totals. This is a fidelity check, not a claim of predictive edge.

Release gate

League-stat audit

Evaluates points, shooting, assists, turnovers, defensive events, and fouls across shuffled league matchups.

Five games per matchup runs the documented 75-game release-gate sample.

Rolling origin

Historical backtest

Predicts each game before applying its result, then compares Bayesian ratings with Elo and league-average baselines.

Loading historical inventory…

No audit in this session

The operational-profile run passed at 3.03% mean error.