Official NHA Assessment

Race 6: GALLOP TV MIDDLE STAKES (F & M) (For Fillies and Mares)

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Line Horse
Ice Rain
Reference for assessment
Exact Matches
2 / 7
Calculated = Official
Close Matches
5 / 7
Within 2 points
Significant Diffs
1 / 7
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    Rahhabba             3    55.5    1    0.00     3.0   83    81           81    -2
2    Ice Rain             4    61.5    2    0.40     1.5   101   101          101   +0
3    Miss Twinkle         3    55.5    3    2.10     3.0   86    84           84    -2
4    Ladyofdistinction    2    58.5    4    3.30     0.0   95    94           94    -1
5    One Smart Cookie     4    60.0    5    3.40     1.5   95    94           94    -1
6    Miss Ladyaterix      3    58.5    6    4.50     3.0   93    87           87    -6
7    Tomyris              4    60.0    7    4.80     1.5   95    93           93    -2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rahhabba 83 89 81 +8 3.0 -
2 Ice Rain Line 101 101 101 ✓ Match 1.5
3 Miss Twinkle 86 86 84 +2 3.0 -
4 Ladyofdistinction 95 95 94 +1 0.0 -
5 One Smart Cookie 95 95 94 +1 1.5 -
6 Miss Ladyaterix 93 92 87 +5 3.0 -
7 Tomyris 95 93 93 ✓ Match 1.5 -
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