Official NHA Assessment

Race 3: OLDER MALE CHARLES DICKENS & OLDER FEMALE SAARTJIE MAIDEN PLATE (For all Maidens)

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Line Horse
Cumbre Vieja
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
7 / 12
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    Plus Four            2    60.0    1    0.00     0.0   77    89           83    +6
2    Cumbre Vieja         2    57.0    2    2.25     0.0   86    86           86    +0
3    Givethatmanabells    4    60.0    3    3.50     6.0   73    78           78    +5
4    Royal Port Louis     2    60.0    4    4.25     0.0   74    90           90    +16
5    Commander Green      2    57.0    5    6.00     0.0   -     83           83    +83
6    Black Cherry         2    60.0    6    6.30     0.0   71    89           89    +18
7    Gnarly               2    57.0    7    6.80     0.0   79    83           83    +4
8    Red Dawn             3    57.0    8    10.05    8.5   81    66           71    -10
9    Amancio              3    60.0    9    12.55    8.5   72    72           72    +0
10   Pee Jay              2    57.0    10   14.55    0.0   -     83           83    +83
11   Arbitration          2    57.0    11   16.55    0.0   -     83           83    +83
12   Time Honored         2    57.0    12   24.30    0.0   -     83           83    +83
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Plus Four 77 87 83 +4 0.0 -
2 Cumbre Vieja Line 86 82 86 -4 0.0
3 Givethatmanabells 73 70 78 -8 6.0 -
4 Royal Port Louis 74 70 90 -20 0.0 -
5 Commander Green - 83 83 ✓ Match 0.0 -
6 Black Cherry 71 66 89 -23 0.0 -
7 Gnarly 79 55 83 -28 0.0 -
8 Red Dawn 81 79 71 +8 8.5 -
9 Amancio 72 68 72 -4 8.5 -
10 Pee Jay - 57 83 -26 0.0 -
11 Arbitration - 78 83 -5 0.0 -
12 Time Honored - 69 83 -14 0.0 -
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