Official NHA Assessment

Race 2: RACING240 FOR RACING. FOR YOU MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Ruby Claire
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
6 / 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    Nemorosa             3    60.0    1    0.00     3.0   66    67           67    +1
2    Ruby Claire          3    60.0    2    1.75     3.0   67    67           67    +0
3    Opera Verse          4    60.0    3    2.75     3.5   51    66           66    +15
4    City Of Dreams       3    60.0    4    3.50     3.0   54    67           67    +13
5    Fantasy Girl         2    60.0    5    8.00     2.0   67    69           69    +2
6    To Be Free           3    60.0    6    10.25    3.0   50    67           67    +17
7    Oh Yoko              3    60.0    7    26.75    3.0   57    67           67    +10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Nemorosa 66 69 67 +2 3.0 -
2 Ruby Claire Line 67 52 67 -15 3.0
3 Opera Verse 51 50 66 -16 3.5 -
4 City Of Dreams 54 59 67 -8 3.0 -
5 Fantasy Girl 67 58 69 -11 2.0 -
6 To Be Free 50 48 67 -19 3.0 -
7 Oh Yoko 57 54 67 -13 3.0 -
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