Official NHA Assessment

Race 2: RACING240 FOR RACING. FOR YOU MAIDEN PLATE (For Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Mayor Of Merrivale
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
5 / 11
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    Champonelle          4    60.0    1    0.00     3.0   64    51           51    -13
2    Mayor Of Merrivale   2    60.0    2    8.50     0.0   57    57           57    +0
3    Velvet Valour        3    60.0    3    9.75     5.0   70    47           60    -10
4    War Of Hearts        3    60.0    4    11.25    5.0   63    47           53    -10
5    Super Casanova       2    60.0    5    11.75    0.0   62    57           57    -5
6    Grand Oasis          3    56.0    6    12.00    5.0   65    39           55    -10
7    World Soprano        2    60.0    7    15.25    0.0   67    57           57    -10
8    Smart View           4    60.0    8    18.50    3.0   50    51           51    +1
9    Bompas               4    60.0    9    22.25    3.0   40    51           51    +11
10   Man Of Steel         6    60.0    10   27.50    0.0   -     57           57    +57
99   Mitredat             3    60.0    99   0.00     5.0   -     47           47    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Champonelle 64 87 51 +36 3.0 -
2 Mayor Of Merrivale Line 57 59 57 +2 0.0
3 Velvet Valour 70 60 60 ✓ Match 5.0 -
4 War Of Hearts 63 52 53 -1 5.0 -
5 Super Casanova 62 60 57 +3 0.0 -
6 Grand Oasis 65 72 55 +17 5.0 -
7 World Soprano 67 65 57 +8 0.0 -
8 Smart View 50 46 51 -5 3.0 -
9 Bompas 40 58 51 +7 3.0 -
10 Man Of Steel - 25 57 -32 0.0 -
99 Mitredat - 51 47 +4 5.0 -
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