John Greenwood

Corryong Cup 2017 · Task 3 (Open) (Thu, 12 Jan 2017) · open · ranked #17 · times in Australia/Melbourne (GMT+11)

Scores computed

Made goal in 3:10:45 — 458.2 points

Click any highlighted step in the explanation to see where it happened.

The flight

What the tracklog shows, and which crossings scored.

Completed the task — full task distance is credited.

Day quality — points on offer

Task validity 100% of a perfect day, so 1000 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?100%

Time validity — was the winning time long enough relative to the nominal time?100%

Points on offer for the day1000 pts

1000 × 1.00 × 1.00 × 1.00 = 1000

Split between the components by the goal ratio

distance 428.2 · time 500.4 · arrival 71.5

Distance points

428.2 pts

Scored distance70.7 km

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

Best distance in class70.7 km

Made goal — full available distance points.428.2 pts

Time points

15.6 pts

Time points use the 2⁄3 speed-fraction exponent (the older GAP2016/2018 curve, S7F §11.2).

Your speed section time3:10:45

Fastest time in class1:52:25

Time points fall off with the gap to the fastest time15.6 pts

speed fraction = max(0, 1 − ((T − Tbest) ÷ √Tbest)^2⁄3) = 0.0311; × 500.4 available = 15.6 (times in hours)

Arrival points

14.5 pts

Arrival points reward crossing the end of the speed section early relative to the other pilots who reached it.14.5 pts

Total

458.2 pts

Distance + time + leading + arrival, minus penalties458.2 pts

428.2 + 15.6 + 14.5 ≈ 458.2 — the points above are shown rounded to 0.1; the total is rounded from their exact sum.

Track data cleaning

2 of 6999 GPS fixes (<0.1%) 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

14:56:05 · 1 fix · up to 161 m off
15:12:35 · 1 fix · up to 163 m off