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
Crown Plaza
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
7 / 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    Lazuli               3    58.5    1    0.00     4.5   70    64           64    -6
2    Crown Plaza          3    60.0    2    3.75     4.5   67    67           67    +0
3    Picara               3    60.0    3    5.75     4.5   67    67           67    +0
4    La Banquiere         4    60.0    4    9.75     5.0   50    66           66    +16
5    On Duty              3    60.0    5    13.75    4.5   -     67           67    +67
6    Walala Wasala        3    60.0    6    16.25    4.5   -     67           67    +67
99   Haute Vaulee         3    60.0    99   0.00     4.5   -     67           67    +0
99   Chasing Heart        3    60.0    99   0.00     4.5   -     67           67    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lazuli 70 71 64 +7 4.5 -
2 Crown Plaza Line 67 58 67 -9 4.5
3 Picara 67 64 67 -3 4.5 -
4 La Banquiere 50 51 66 -15 5.0 -
5 On Duty - 45 67 -22 4.5 -
6 Walala Wasala - 61 67 -6 4.5 -
99 Haute Vaulee - 53 67 -14 4.5 -
99 Chasing Heart - 44 67 -23 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