Official NHA Assessment

Race 6: JOIN THE PASSION! www.racecoast.co.za C STAKES (For All Horses)

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Line Horse
Spectacular
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 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    African Dusk         5    59.0    1    0.00     0.0   79    92           85    +6
2    Master Du Rouvray    2    61.5    2    0.10     0.0   81    97           97    +16
3    Spectacular          3    56.0    3    3.50     6.0   77    77           77    +0
4    High Queue           4    60.0    4    5.30     3.0   75    88           88    +13
5    Shiny Bob            4    54.0    5    5.70     3.0   63    76           76    +13
6    Ziyan's Pride        2    55.5    6    9.00     0.0   79    85           85    +6
7    Intuitive Spirit     4    51.0    7    9.30     3.0   62    70           70    +8
8    Mr Fixit             3    61.5    8    10.00    6.0   79    85           85    +6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 African Dusk 79 83 85 -2 0.0 -
2 Master Du Rouvray 81 81 97 -16 0.0 -
3 Spectacular Line 77 76 77 -1 6.0
4 High Queue 75 74 88 -14 3.0 -
5 Shiny Bob 63 60 76 -16 3.0 -
6 Ziyan's Pride 79 65 85 -20 0.0 -
7 Intuitive Spirit 62 57 70 -13 3.0 -
8 Mr Fixit 79 79 85 -6 6.0 -
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