Official NHA Assessment

Race 2: BORROWDALE D STAKES 68 (For All Horses with a nett rating of 68 & below)

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Line Horse
New Galaxy
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
5 / 6
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    River Power          3    55.5    1    0.00     7.0   71    55           55    -16
2    Prince Of Denmark    4    54.0    2    1.50     4.0   55    61           61    +6
3    New Galaxy           4    53.0    3    3.00     4.0   58    58           58    +0
4    Bruce's Spirit       6    58.5    4    4.00     0.0   64    76           76    +12
99   Gypsy Express        5    56.0    99   0.00     0.0   -     70           70    +0
99   Karvani              7    60.0    99   0.00     0.0   -     78           78    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 River Power 71 97 55 +42 7.0 -
2 Prince Of Denmark 55 51 61 -10 4.0 -
3 New Galaxy Line 58 45 58 -13 4.0
4 Bruce's Spirit 64 55 76 -21 0.0 -
99 Gypsy Express - 58 70 -12 0.0 -
99 Karvani - 73 78 -5 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