SAC @ MIA
Sacramento Kings · Miami Heat · Monday, 21 December 2026 at 00:00
What Forecast expects · Favourite
- MIA starts with a 72.5% chance to win; SAC with 27.5%.
- In games: out of 10 like this one, MIA would win 7 and SAC 3.
Confidence
- The model sees a clear favorite.
- 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
- This snapshot's components are not sealed: they are not rebuilt from later data, so there are no pillars or counterfactuals here.
- This snapshot's components are not sealed: they are not rebuilt from later data, so there are no pillars or counterfactuals here.
- The explanatory components are not verified for this version: the probability is shown, but not what breaks it down nor the scenarios.
- The explanatory components are not verified for this version: the probability is shown, but not what breaks it down nor the scenarios.
Quantified explanation not available: the components are not verified for this version.
What could flip it
- 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).
- 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
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After the game
- Tips off on 2026-12-20. Afterwards, expected versus actual will be compared and recorded here.
Is it calibrated?
- 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.
This forecast's data is not up to date: there are changes pending. Do not treat it as current.
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.
- · The explanatory components are not verified for this version: the probability is shown, but not what breaks it down nor the scenarios.
- · The explanatory components are not verified for this version: the probability is shown, but not what breaks it down nor the scenarios.
As of 20 Sept · SportiveWorld model
Warning · 11/12
- ✓ 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
- ✓ 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.