Official NHA Assessment

Race 1: TRACK AND BALL GAMING FM 77 HANDICAP (F & M) (For Fillies and Mares)

Line Horse
War Empress
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 8
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    Hot Pearl            2    60.0    1    0.00     5.5   88    74           88    +0
2    Maquette             3    62.0    2    1.05     8.5   81    72           72    -9
3    War Empress          5    51.0    3    1.10     0.0   67    67           67    +0
4    Arverni Princess     2    55.0    4    1.70     5.5   78    64           68    -10
5    Full Of Magic        4    57.0    5    5.70     10.0  82    59           72    -10
6    Mamas Baby           4    57.5    6    5.80     10.0  83    60           73    -10
7    Tara Star            4    57.0    7    8.90     10.0  82    59           72    -10
99   Pantea               3    53.0    99   0.00     8.5   -     54           54    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Hot Pearl 88 90 88 +2 5.5 -
2 Maquette 81 91 72 +19 8.5 -
3 War Empress Line 67 92 67 +25 0.0
4 Arverni Princess 78 67 68 -1 5.5 -
5 Full Of Magic 82 52 72 -20 10.0 -
6 Mamas Baby 83 65 73 -8 10.0 -
7 Tara Star 82 96 72 +24 10.0 -
99 Pantea - 57 54 +3 8.5 -
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