Official NHA Assessment

Race 5: PLAY SOCCER 6, 10 AND 13 WORK RIDERS MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Girl Scout
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
6 / 9
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Cape Bouquet         3    60.0    1    0.00     3.5   68    48           48    -20
2    Destiny Rules        4    60.0    2    1.00     1.5   49    56           56    +7
3    Jane Wilson          3    60.0    3    2.00     3.5   46    51           51    +5
4    Girl Scout           3    60.0    4    8.00     3.5   48    48           48    +0
5    Vaguely Familiar     3    60.0    5    8.25     3.5   -     48           48    +48
6    Mansooriya           3    60.0    6    9.25     3.5   -     48           48    +48
7    Sundrop              6    60.0    7    11.00    0.0   52    55           55    +3
8    Elusive Rocket       3    60.0    8    11.50    3.5   58    48           48    -10
9    Cassowary            3    60.0    9    18.00    3.5   59    48           49    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cape Bouquet 68 62 48 +14 3.5 -
2 Destiny Rules 49 53 56 -3 1.5 -
3 Jane Wilson 46 40 51 -11 3.5 -
4 Girl Scout Line 48 54 48 +6 3.5
5 Vaguely Familiar - 50 48 +2 3.5 -
6 Mansooriya - 52 48 +4 3.5 -
7 Sundrop 52 48 55 -7 0.0 -
8 Elusive Rocket 58 55 48 +7 3.5 -
9 Cassowary 59 37 49 -12 3.5 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points