Official NHA Assessment

Race 6: BORROWDALE WEIGHT-FOR-AGE (WEIGHT-FOR-AGE)

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Line Horse
Jaeger Moon
Reference for assessment
Exact Matches
0 / 4
Calculated = Official
Close Matches
0 / 4
Within 2 points
Significant Diffs
3 / 4
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    Jaeger Moon          7    60.0    1    0.00     0.0   107   107          107   +0
2    Action Zone          3    60.0    2    2.00     1.0   102   108          108   +6
3    My Secret Place      5    57.0    3    5.00     0.0   90    101          101   +11
4    Jet Mirage           3    60.0    4    9.00     1.0   106   105          105   -1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jaeger Moon Line 107 97 107 -10 0.0
2 Action Zone 102 90 108 -18 1.0 -
3 My Secret Place 90 71 101 -30 0.0 -
4 Jet Mirage 106 100 105 -5 1.0 -
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