Official NHA Assessment

Race 5: BORROWDALE SPRINT (Open)

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Line Horse
Var Aglow
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
1 / 5
Within 2 points
Significant Diffs
4 / 5
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    Jet Mirage           3    60.0    1    0.00     6.0   107   91           91    -16
2    Majestic Warrior     2    52.0    2    0.10     0.0   89    87           87    -2
3    Var Aglow            5    56.0    3    3.60     0.0   96    96           96    +0
4    Wantage              8    54.0    4    3.85     0.0   91    92           92    +1
5    Jubilee              7    52.0    5    6.85     0.0   89    87           87    -2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jet Mirage 107 100 91 +9 6.0 -
2 Majestic Warrior 89 86 87 -1 0.0 -
3 Var Aglow Line 96 84 96 -12 0.0
4 Wantage 91 78 92 -14 0.0 -
5 Jubilee 89 72 87 -15 0.0 -
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