Scoring
Scores depend on the ratio between your value and the target, not on the absolute difference. Guessing 2× too high costs the same as guessing 2× too low.
The formula
points = round(100 × e^(−2 × |ln(value ÷ target)|))
Examples
- Exact or within 1%: 100 + 25 dialed bonus = 125
- 10% off: 83 points
- 25% too high or 20% too low: 64 points
- Twice or half the target: 25 points
Year questions
Years score by distance: round(100 × e^(−years apart ÷ 25)). The exact year is dialed in.
Altitude
Each point adds 10 m. During a round the plane sinks 4 m per second after a 3-second grace, at most 108 m. Altitude never goes below zero. A timed-out round scores 0 and takes the full sink.
Calculator
77 points · +770 m climb · −20 m sink