Official NHA Assessment

Race 4: JOIN THE MAGIC www.capeturfclub.co.za MAIDEN PLATE (For all Maidens)

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Line Horse
Royal Port Louis
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
8 / 10
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    Givethatmanabells    4    60.0    1    0.00     5.0   73    61           61    -12
2    Royal Port Louis     2    60.0    2    1.75     0.0   74    74           74    +0
3    Late December        2    57.0    3    2.50     0.0   83    67           73    -10
4    Cumbre Vieja         2    57.0    4    3.75     0.0   86    66           76    -10
5    Secret Passage       3    57.0    5    5.25     8.0   -     49           49    +49
6    Past And Present     3    57.0    6    8.75     8.0   -     49           49    +49
7    Beer With The Boys   3    60.0    7    9.25     8.0   -     55           55    +55
8    Statehood            3    57.0    8    11.50    8.0   -     49           49    +49
9    Noble Hero           3    57.0    9    11.90    8.0   -     49           49    +49
10   Global Rock          2    57.0    10   11.95    0.0   64    65           65    +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Givethatmanabells 73 70 61 +9 5.0 -
2 Royal Port Louis Line 74 70 74 -4 0.0
3 Late December 83 87 73 +14 0.0 -
4 Cumbre Vieja 86 82 76 +6 0.0 -
5 Secret Passage - 77 49 +28 8.0 -
6 Past And Present - 68 49 +19 8.0 -
7 Beer With The Boys - 59 55 +4 8.0 -
8 Statehood - - 49 -49 8.0 -
9 Noble Hero - 78 49 +29 8.0 -
10 Global Rock 64 59 65 -6 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