Official NHA Assessment

Race 3: BOOK A TABLE CALL 0116811796 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
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 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    Kambulu              3    60.0    1    0.00     9.0   69    60           60    -9
2    Emblem Of War        3    57.0    2    1.75     9.0   -     57           57    +57
3    Officer In Command   4    57.0    3    5.50     5.0   -     62           62    +62
4    Harold The Duke      3    60.0    4    7.00     9.0   60    60           60    +0
5    Touched By Stars     5    60.0    5    10.50    0.0   54    78           78    +24
6    Dame Colleen         3    56.5    6    24.00    9.0   46    53           53    +7
7    Bregardt             4    57.0    7    35.00    5.0   79    62           69    -10
99   In A Blue Moon       2    57.0    99   0.00     0.0   -     72           72    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kambulu 69 64 60 +4 9.0 -
2 Emblem Of War - 75 57 +18 9.0 -
3 Officer In Command - 86 62 +24 5.0 -
4 Harold The Duke Line 60 86 60 +26 9.0
5 Touched By Stars 54 52 78 -26 0.0 -
6 Dame Colleen 46 46 53 -7 9.0 -
7 Bregardt 79 52 69 -17 5.0 -
99 In A Blue Moon - 74 72 +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