Assessing Difficulty

We consider only pilots landing out in 100m chunks of the task. How many came down in a chunk and how many are downward bound is shown. For each chunk with a landing, we have its relative difficulty. Taking the sum of these under a moving window we have difficulty fractions to award to pilots.

minDistance: 5.000 km
bestDistance:
...
- 158.865 km
landout:
...
- 63
lookahead:
...
- 76
sumOfDifficulty:
...
- 266
difficulty:
...
- - chunk: 0
    startChunk: 5.0 km
    endChunk: 5.0 km
    endAhead: 12.6 km
    down: 3
    downs:
    - 5.000 km
    - 5.000 km
    - 5.000 km
    downers:
    - - '32'
      - Kathryn O'Riordan
    - - '64'
      - Gustavo Carvalho
    - - '28'
      - Evgeniya Laritskaya
    downward: 3
    rel: 5.6391e-3
    frac: 5.6391e-3
    ...
  - chunk: 304
    startChunk: 35.3 km
    endChunk: 35.4 km
    endAhead: 43.0 km
    down: 1
    downs:
    - 35.388 km
    downers:
    - - '53'
      - Hadewych van Kempen
    downward: 1
    rel: 1.8797e-3
    frac: 4.887218e-2
  - chunk: 411
    startChunk: 46.0 km
    endChunk: 46.1 km
    endAhead: 53.7 km
    down: 1
    downs:
    - 46.041 km
    downers:
    - - '40'
      - Phil de Joux
    downward: 5
    rel: 9.3985e-3
    frac: 5.827068e-2
    ...