Official NHA Assessment

Race 4: BSA AUGUST TWO YEAR OLD SALE MERIT RATED 75 HANDICAP (Open)

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Line Horse
Tigers Eagle
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    Nandine              3    57.5    1    0.00     7.0   71    65           71    +0
2    Cutback              6    55.5    2    1.75     0.0   66    80           80    +14
3    Tigers Eagle         3    59.5    3    2.00     7.0   74    74           74    +0
99   Qunetra              4    60.0    99   0.00     3.5   -     77           77    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Nandine 71 60 71 -11 7.0 -
2 Cutback 66 63 80 -17 0.0 -
3 Tigers Eagle Line 74 79 74 +5 7.0
99 Qunetra - 83 77 +6 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