Skip to main content

Keith Lavers

Corryong Cup 2021 · Task 4 (Open) (Wed, 13 Jan 2021) · open · ranked #16 · times in Australia/Melbourne (GMT+11)

Scores computed

No valid start — 142.4 points

The flight

What the tracklog shows, and which crossings scored.

No valid start — the track never crossed the start cylinder in the required direction, so only pre-start progress can score.

Day quality — points on offer

Task validity 63.98% of a perfect day, so 639.8 of 1000 points were available.

Launch validity — did enough registered pilots launch?100%
Distance validity — did the field fly far enough relative to the nominal distance?68.92%
Time validity — was the winning time long enough relative to the nominal time?92.83%
Points on offer for the day639.8 pts

1000 × 1.00 × 0.6892 × 0.9283 = 639.8

Split between the components by the goal ratio

distance 366.7 · time 273

Distance points

142.4 pts
Flew 0.0 km, less than the 5.0 km minimum — scored as the minimum distance.
Scored distance5.0 km

Measured along the optimized task line, up to the furthest point on course.

Best distance in class46.0 km
Linear half — half the available points scale with your share of the best distance20 pts

0.5 × (5.0 km ÷ 45.956 km) × 366.74 = 20

Difficulty half — rewards flying past stretches where many pilots landed122.4 pts

The difficulty curve is built from where the whole field landed out (FAI S7F §11.1.1).

Time points

0 pts
Time points are only awarded to pilots who reach the end of the speed section.

Total

142.4 pts
Distance + time + leading + arrival, minus penalties142.4 pts

round(142.4 + 0.0, 1 dp) = 142.4

Track data cleaning

45 of 2248 GPS fixes (2.0%) carried an implausible altitude and were repaired before analysis — flagged by vertical-speed limits (no barometric channel to cross-check). Positions and times are never altered. How data cleaning works

  • 13:13:10–13:13:11 · 2 fixes · up to 118 m off
  • 13:23:50–13:23:58 · 8 fixes · up to 344 m off
  • 13:25:07–13:25:15 · 9 fixes · up to 553 m off
  • 13:31:18–13:31:43 · 25 fixes · up to 206 m off
  • 13:33:06 · 1 fix · up to 183 m off