Official NHA Assessment

Race 3: TABONLINE.CO.ZA MAIDEN PLATE (For all Maidens)

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Line Horse
Donder Storm
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 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    Le Morne             3    57.0    1    0.00     8.5   -     53           6     +6
2    Donder Storm         3    60.0    2    0.75     8.5   63    63           63    +0
3    Cider House Rules    2    57.0    3    1.05     0.0   -     74           74    +74
4    Red William          5    57.0    4    2.30     0.0   77    72           72    -5
5    Green Falcon         2    57.0    5    4.55     0.0   74    70           70    -4
6    William The First    2    57.0    6    6.55     0.0   -     70           70    +70
7    I Did It My Way      2    57.0    7    12.05    0.0   84    70           74    -10
8    Maximus Marmaladus   2    57.0    8    14.05    0.0   -     70           70    +70
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Le Morne - 105 6 +99 8.5 -
2 Donder Storm Line 63 63 63 ✓ Match 8.5
3 Cider House Rules - 69 74 -5 0.0 -
4 Red William 77 83 72 +11 0.0 -
5 Green Falcon 74 62 70 -8 0.0 -
6 William The First - 75 70 +5 0.0 -
7 I Did It My Way 84 81 74 +7 0.0 -
8 Maximus Marmaladus - 48 70 -22 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