Is this good for educators?

Yes — this version of "Win Probability for a hockey slap shot" is framed for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs.

Do I need to install anything?

No. It runs in any modern browser, free, with no account required.

For Educators · Win Probability

Win Probability for a hockey slap shot

Built for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs. Simulate a hockey slap shot live below — adjust the inputs and watch it respond, right in your browser.

Live Win ProbabilityLive

the odds in real time

Controls

Presets

Lead (points)

Minutes remaining

Scoring volatility

Win probability turns the score and clock into a live percentage. Early on, even a big lead is fragile because plenty of scoring remains; late in the game, the same lead is nearly safe because the uncertainty has shrunk. Modeling the remaining margin as a shrinking random variable produces the classic curve that broadcasts now show on screen.

▶ Run in Python

Data Inspector

Win probability82.5%

Lead+5

Time left10 min

Governing equation

P = \frac{1}{1 + e ^{- 1.7 ℓ / σ_{r}}} = \frac{1}{1 + e ^{- 1.7 \cdot (5) /5.5}} = 82.5%

Reading this result: A 5-point lead is still soft with 10 min on the clock — plenty of scoring remains, keeping win probability near 83%.

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Frequently asked questions

Is this good for educators?: Yes — this version of "Win Probability for a hockey slap shot" is framed for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.