Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN JUVENILE PLATE (For 2 year olds)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
8 / 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    Manchester Fighter   2    60.0    1    0.00     0.0   -     -            -     +0
2    Bridgerton           2    60.0    2    0.10     0.0   -     -            -     +0
3    Pisces               2    60.0    3    0.20     0.0   -     -            -     +0
4    Swiftwinged          2    57.5    4    0.45     0.0   -     -            -     +0
5    Excalibur            2    60.0    5    2.20     0.0   -     -            -     +0
6    Lord Milori          2    60.0    6    4.95     0.0   -     -            -     +0
7    Follow The Band      2    60.0    7    5.70     0.0   -     -            -     +0
8    Sound Of Hooves      2    60.0    8    23.95    0.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Manchester Fighter - 66 - +66 0.0 -
2 Bridgerton - 67 - +67 0.0 -
3 Pisces - 56 - +56 0.0 -
4 Swiftwinged - 62 - +62 0.0 -
5 Excalibur - 65 - +65 0.0 -
6 Lord Milori - 64 - +64 0.0 -
7 Follow The Band - 53 - +53 0.0 -
8 Sound Of Hooves - 20 - +20 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