Official NHA Assessment

Race 6: NIGHT RACE MEETING 17 NOVEMBER FM 88 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Special Charm
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
6 / 9
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    Damostar             4    52.0    1    0.00     4.5   86    76           86    +0
2    Quiet Rebellion      3    55.0    2    1.90     8.0   78    80           80    +2
3    Special Charm        3    57.0    3    3.60     8.0   82    82           82    +0
4    Raratonga Rose       2    59.0    4    3.70     0.0   87    102          102   +15
5    United Council       5    60.0    5    4.10     0.0   89    103          103   +14
6    Pretty In Pearls     3    52.0    6    4.50     8.0   71    70           70    -1
7    Ballroom Bliss       4    56.5    7    4.60     4.5   81    86           86    +5
8    Intoxicating         2    55.5    8    5.00     0.0   80    92           92    +12
99   Silver Sanctuary     4    56.0    99   0.00     4.5   -     84           84    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Damostar 86 91 86 +5 4.5 -
2 Quiet Rebellion 78 74 80 -6 8.0 -
3 Special Charm Line 82 104 82 +22 8.0
4 Raratonga Rose 87 80 102 -22 0.0 -
5 United Council 89 100 103 -3 0.0 -
6 Pretty In Pearls 71 56 70 -14 8.0 -
7 Ballroom Bliss 81 84 86 -2 4.5 -
8 Intoxicating 80 75 92 -17 0.0 -
99 Silver Sanctuary - 117 84 +33 4.5 -
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