Official NHA Assessment

Race 5: BOOK A TABLE CALL 011-681-1796 MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Harold The Duke
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
4 / 8
Within 2 points
Significant Diffs
4 / 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    Battleground         5    58.0    1    0.00     0.0   76    66           66    -10
2    Harold The Duke      3    60.0    2    7.75     6.0   58    58           58    +0
3    Labrausco            2    55.5    3    8.00     0.0   61    61           61    +0
4    Antananarivo         4    56.5    4    17.00    3.0   -     57           57    +57
5    Elducino             3    56.5    5    19.00    6.0   64    51           54    -10
6    Paschals Njaro       3    58.0    6    36.00    6.0   -     54           54    +54
7    Pedasos              3    58.0    7    38.00    6.0   64    54           54    -10
99   Circus Lights        5    58.0    99   0.00     0.0   -     66           66    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Battleground 76 92 66 +26 0.0 -
2 Harold The Duke Line 58 86 58 +28 6.0
3 Labrausco 61 70 61 +9 0.0 -
4 Antananarivo - 57 57 ✓ Match 3.0 -
5 Elducino 64 56 54 +2 6.0 -
6 Paschals Njaro - 35 54 -19 6.0 -
7 Pedasos 64 53 54 -1 6.0 -
99 Circus Lights - 64 66 -2 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