Official NHA Assessment

Race 4: RACING240 FOR RACING. FOR YOU PINNACLE STAKES (F & M) (For Fillies and Mares)

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Line Horse
Marigold Hotel
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
4 / 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    Gilded Butterfly     3    60.0    1    0.00     4.0   100   100          100   +0
2    Queen Of Shadows     3    56.0    2    1.50     4.0   91    95           95    +4
3    Marigold Hotel       3    60.0    3    1.75     4.0   103   103          103   +0
4    Hollywoodbound       3    60.0    4    6.00     4.0   101   100          100   -1
5    Shivers              5    56.0    5    7.50     0.0   93    100          100   +7
6    Ululate              4    56.0    6    8.50     2.0   94    96           96    +2
7    Supreme Quest        3    60.0    7    10.25    4.0   101   100          100   -1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Gilded Butterfly 100 108 100 +8 4.0 -
2 Queen Of Shadows 91 95 95 ✓ Match 4.0 -
3 Marigold Hotel Line 103 107 103 +4 4.0
4 Hollywoodbound 101 101 100 +1 4.0 -
5 Shivers 93 93 100 -7 0.0 -
6 Ululate 94 80 96 -16 2.0 -
7 Supreme Quest 101 92 100 -8 4.0 -
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