Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY WORK RIDERS MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
String Of Lights
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
5 / 9
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    Double Trade         2    59.0    1    0.00     5.5   70    72           72    +2
2    String Of Lights     4    60.5    2    0.25     10.0  66    66           66    +0
3    Miss Prior           3    59.0    3    0.75     8.5   75    66           66    -9
4    Cape Flower          3    59.0    4    3.25     8.5   77    66           67    -10
5    Ponte Vecchio        2    60.0    5    8.75     5.5   59    74           74    +15
6    Faraway Star         2    59.0    6    11.25    5.5   -     72           72    +72
7    Serendipitous        3    59.0    7    12.50    8.5   73    66           66    -7
8    Macarina Mambo       5    60.0    8    23.75    0.0   -     85           85    +85
99   Ethensbeaut          2    59.0    99   0.00     5.5   -     72           72    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Double Trade 70 67 72 -5 5.5 -
2 String Of Lights Line 66 66 66 ✓ Match 10.0
3 Miss Prior 75 61 66 -5 8.5 -
4 Cape Flower 77 57 67 -10 8.5 -
5 Ponte Vecchio 59 56 74 -18 5.5 -
6 Faraway Star - - 72 -72 5.5 -
7 Serendipitous 73 60 66 -6 8.5 -
8 Macarina Mambo - 48 85 -37 0.0 -
99 Ethensbeaut - 67 72 -5 5.5 -
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