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Nariyuki Watabe

Corryong Cup 2017 · Task 4 (Open) (Sat, 14 Jan 2017) · open · ranked #23 · times in Australia/Melbourne (GMT+11)

Officially: 23rd · 86 pts (AirScore)

Scores computed · FAI S7F 2026

Landed out at 10.3 km — 79.3 points

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The flight

What the tracklog shows, and which crossings scored.

How this works

Day quality — points on offer

Task validity 53.22% of a perfect day, so 532.2 of 1000 points were available.

How this works

Launch validity — the day counts for less if much of the field never got into the air.100%

26 pilots flew out of 26 present. Nominal launch is 96%, so launch validity is full once 25 pilots are in the air.

Distance validity — the day counts for less if the field as a whole did not get far.71.95%

Measured against a 50.0 km nominal distance, a 30% nominal goal and a 5.0 km minimum distance. The field flew 21.0 km past the minimum on average, with a best of 33.1 km.

How far the field got — the spread distance validity is computed from, one dot per pilot. 26 pilots flew; you flew 10.3 km, further than 3 of them. The day averaged 21.0 km past the 5.0 km minimum, against a 50.0 km nominal distance.
Time validity — the day counts for less if the fastest pilot got round much quicker than the task was meant to take.73.97%

The fastest pilot took 46:45 against a nominal task time of 1:30:00 — 52% of nominal.

Points on offer for the day532.2 pts

1000 × 1.00 × 0.7195 × 0.7397 = 532.2

Split between the components: 12 of 26 pilots made goal — a goal ratio of 0.46

distance 233.5 · time 261.4 · arrival 37.3

The share each component takes of the day

distance 43.9% · time 49.1% · arrival 7.0%

Leading weight follows the FAI S7F 2026 §11 formula: 18% of the non-distance weight (the task's Leading Time Ratio) goes to leading.

Distance points

79.3 of 233.5 pts

23rd furthest of 26

How this works

Task distance33.1 km

The optimized task line — the shortest legal way round the turnpoints.

Scored distance10.3 km

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

Best distance in class33.1 km
Linear half — half the available points scale with your share of the best distance36.3 pts

0.5 × (10.3 km ÷ 33.1 km) × 233.5 = 36.3

Difficulty half — rewards flying past stretches where many pilots landed43.1 pts

The difficulty curve is built from where the whole field landed out (FAI S7F §12.1.1).

The curve is the distance-points formula, half of it built from where the field landed out (FAI S7F §12.1.1) — every dot is a pilot, sitting exactly on it. Its steepest stretches are the ones fewest pilots got past, so flying through one is worth more than the same distance somewhere easy. You flew 10.3 km of the class best 33.1 km, worth 79.3 of 233.5.

Time points

0 of 261.4 pts

How this works

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

Arrival points

0 of 37.3 pts

How this works

Arrival points reward crossing the end of the speed section early relative to the other pilots who reached it.0 pts
12 pilots reached the end of the speed section on this task; the points scale with where in that group you crossed it (FAI S7F §13.5).

Total

79.3 of 532.2 pts

How this works

Distance + time + leading + arrival, minus penalties79.3 pts

round(79.3 + 0.0, 1 dp) = 79.3

Where the points went

Your 79.3 against the 525.9 that won the class.

How this works

Distance−154.2 pts

you 79.3, the leader 233.5

Time−261.4 pts

you 0, the leader 261.4

Arrival−31 pts

you 0, the leader 31

Behind Hughbert Alexander−446.6 pts

Spread across time-points, distance-points and arrival-points — time-points the largest, at 261.4.