Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY WORK RIDERS MAIDEN PLATE (For Maidens)

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Line Horse
American Matador
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
7 / 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    American Matador     3    60.0    1    0.00     8.5   71    71           71    +0
2    Timeline             3    57.5    2    0.50     8.5   62    66           66    +4
3    Magnus The Good      2    59.0    3    0.55     5.5   79    75           75    -4
4    American Eagle       3    60.5    4    4.30     8.5   59    72           72    +13
5    Originator           4    60.0    5    4.55     10.0  -     68           68    +68
6    Global Zee           2    60.0    6    7.05     5.5   63    77           77    +14
7    Move To The Groove   3    57.5    7    9.05     8.5   -     66           66    +66
8    Norse Warrior        2    59.0    8    10.05    5.5   59    75           75    +16
9    Sweet Cake           2    57.5    9    11.55    5.5   65    72           72    +7
10   Khichdi              3    60.0    10   15.80    8.5   75    71           71    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 American Matador Line 71 71 71 ✓ Match 8.5
2 Timeline 62 53 66 -13 8.5 -
3 Magnus The Good 79 74 75 -1 5.5 -
4 American Eagle 59 59 72 -13 8.5 -
5 Originator - 67 68 -1 10.0 -
6 Global Zee 63 50 77 -27 5.5 -
7 Move To The Groove - 39 66 -27 8.5 -
8 Norse Warrior 59 56 75 -19 5.5 -
9 Sweet Cake 65 60 72 -12 5.5 -
10 Khichdi 75 62 71 -9 8.5 -
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