Official NHA Assessment

Race 6: GLISTIAN EVENTS MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

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Line Horse
Witching Hour
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 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    Special Star         2    56.0    1    0.00     0.0   -     76           6     +6
2    Witching Hour        2    56.0    2    2.40     0.0   78    78           78    +0
3    Amazon Queen         3    56.0    3    3.20     9.5   -     59           59    +59
4    Sapphire Sun         2    56.0    4    6.30     0.0   73    76           76    +3
5    Madame Pompadour     2    60.0    5    12.55    0.0   59    84           84    +25
6    Hubertus Hunt        2    56.0    6    19.05    0.0   61    76           76    +15
7    Lady Lancaster       3    60.0    7    19.55    9.5   -     65           65    +65
99   Rejuvenate           2    56.0    99   0.00     0.0   -     76           76    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Special Star - 82 6 +76 0.0 -
2 Witching Hour Line 78 68 78 -10 0.0
3 Amazon Queen - 81 59 +22 9.5 -
4 Sapphire Sun 73 71 76 -5 0.0 -
5 Madame Pompadour 59 56 84 -28 0.0 -
6 Hubertus Hunt 61 75 76 -1 0.0 -
7 Lady Lancaster - 53 65 -12 9.5 -
99 Rejuvenate - 79 76 +3 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