Official NHA Assessment

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

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Line Horse
Miss Tucker
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
6 / 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    Lady Chartouche      2    60.0    1    0.00     0.0   60    51           51    -9
2    Telio                2    60.0    2    0.50     0.0   67    56           57    -10
3    Quirk Of Fate        2    57.0    3    1.75     0.0   -     48           48    +48
4    Celtic Vixen         4    60.0    4    2.50     0.5   50    52           52    +2
5    Miss Tucker          3    60.0    5    2.75     0.5   52    52           52    +0
6    Magenta              4    60.0    6    3.25     0.5   51    52           52    +1
7    Fire Glow            4    57.0    7    7.75     0.5   -     44           44    +44
8    Fly Better           3    60.0    8    7.85     0.5   50    50           50    +0
9    Gaetana              3    60.0    9    20.85    0.5   38    50           50    +12
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lady Chartouche 60 64 51 +13 0.0 -
2 Telio 67 54 57 -3 0.0 -
3 Quirk Of Fate - 55 48 +7 0.0 -
4 Celtic Vixen 50 58 52 +6 0.5 -
5 Miss Tucker Line 52 48 52 -4 0.5
6 Magenta 51 59 52 +7 0.5 -
7 Fire Glow - 67 44 +23 0.5 -
8 Fly Better 50 45 50 -5 0.5 -
9 Gaetana 38 26 50 -24 0.5 -
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