SportiveWorldSportiveWorld

FORECAST · NBA

ATL @ BOS

Atlanta Hawks · Boston Celtics · Saturday, 28 November 2026 at 02:00

UpcomingUpdatedAs of 24 Sept

What Forecast expects · Favourite

68%BOSchance to win
BOS · 67.6%32.4% · ATL
  • BOS starts with a 67.6% chance to win; ATL with 32.4%.
  • In games: out of 10 like this one, BOS would win 7 and ATL 3.

Confidence

medium
  • No game forecast has been checked against a result yet this season: confidence cannot be high until there are some.
  • The model does not know this game's injuries or starting five.

Why

  • Home court is worth 7.2 probability points to BOS.
  • BOS's projected roster is stronger: 9th in the league versus ATL's 18th. That moves 10.4 points toward BOS.
  • Who carries BOS: Payton Pritchard · Jayson Tatum · Derrick White.
  • BOS has 4,342 season minutes unassigned (22%); the model counts them at replacement level.
  • Who carries ATL: Jalen Johnson · Dyson Daniels · Onyeka Okongwu.
  • ATL has 654 season minutes unassigned (3%); the model counts them at replacement level.

What weighs most

Home court+7.2 toward BOS
Projected roster+10.4 toward BOS

probability points

What could flip it

  • Without Payton Pritchard (BOS), with his minutes at replacement level, the model would give BOS 62.6%.BOS 63%
  • Without Jalen Johnson (ATL), with his minutes at replacement level, the model would give BOS 73.9%.BOS 74%
  • What the model does not look at and this number does not capture: rest and travel, the day's injury report, the starting five and recent form.

Uncertainty

  • The model gives a number, not a band: its reliability is measured by comparing forecasts with results, not by drawing a margin.
  • Over 10,749 games in 2017-2025 it did better than home court alone (Brier error 0.227 versus 0.247; 0 would be perfect).
  • Rosters are not settled: the forecast is recomputed daily with that day's roster.
  • It does not know injuries, rest, travel or the starting five: any of them can move this game without the number changing.

What changed since the last snapshot

Loading

After the game

  • Tips off on 2026-11-28. Afterwards, expected versus actual will be compared and recorded here.

Is it calibrated?

10,749
historical games
2017-2025
0.227
error (Brier)
home court only 0.247
  • No forecasts have been settled this season yet: this model's calibration starts being measured with the first games (2026-10-20). Until then, its track record is historical: 10,749 games from 2017-2025.

How it is measured and limits

Model

SportiveWorld's game model, frozen before the season: it reads each roster's projected strength and home-court advantage. It does not read the day's injury report.

Data is up to date.

Sample · No settled games yet to measure it against.

Injuries · The model does not read the day's injury report: the rosters it uses are the season projections.

  • · Rosters are not settled yet: the number can move until the season starts.

As of 24 Sept · SportiveWorld model

Verified against the source · 14/14
  • expected competition and game
  • home and away
  • probability intact
  • favourite = higher probability
  • sealed and signed snapshot
  • registered model
  • sealed before tip-off
  • consistent official result
  • core verified by the server
  • verified components
  • numbers add up
  • consistent scenarios
  • freshness without contradiction
  • consistent track record

This is reading the data, not a bet: we work with no bookmakers and show no odds. And a game turns on an injury, a hot night or a bad call.