Official NHA Assessment

Race 2: Gallop TV YOUTUBE CHANNEL MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

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Line Horse
I'm Devine
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    Copacabana           4    58.5    1    0.00     1.0   -     52           6     +6
2    Nautical Landing     3    56.0    2    0.20     2.5   -     44           44    +44
3    Extraction           2    56.0    3    1.10     0.0   -     53           53    +53
4    I'm Devine           4    60.0    4    3.10     1.0   57    57           57    +0
5    Dirty Mimosa         2    56.0    5    9.30     0.0   -     49           49    +49
6    Lady Sureyya         3    58.5    6    10.50    2.5   61    49           51    -10
7    Sister Midnight      3    60.0    7    25.50    2.5   -     52           52    +52
99   Pitzuchim            2    56.0    99   0.00     0.0   -     49           49    +0
99   City Lights          4    60.0    99   0.00     1.0   -     55           55    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Copacabana - 74 6 +68 1.0 -
2 Nautical Landing - 63 44 +19 2.5 -
3 Extraction - 54 53 +1 0.0 -
4 I'm Devine Line 57 60 57 +3 1.0
5 Dirty Mimosa - 56 49 +7 0.0 -
6 Lady Sureyya 61 42 51 -9 2.5 -
7 Sister Midnight - 33 52 -19 2.5 -
99 Pitzuchim - 68 49 +19 0.0 -
99 City Lights - 52 55 -3 1.0 -
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