Official NHA Assessment

Race 5: RIDGEMONT DEVON AIR STAKES (Listed) (For 2 yof R100 000 Win BSA / CRS Bonus Series)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
7 / 7
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    Quickstepgal         2    60.0    1    0.00     0.0   -     -            -     +0
2    Tina Lovelace        2    58.0    2    2.60     0.0   -     -            -     +0
3    Captains Envy        2    58.0    3    3.65     0.0   -     -            -     +0
4    Educator             2    58.0    4    3.70     0.0   -     -            -     +0
5    Littlemisssplendid   2    58.0    5    6.10     0.0   -     -            -     +0
6    Willow Gem           2    58.0    6    6.20     0.0   -     -            -     +0
7    Vanakkam             2    58.0    7    9.70     0.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Quickstepgal - 116 - +116 0.0 -
2 Tina Lovelace - 95 - +95 0.0 -
3 Captains Envy - 98 - +98 0.0 -
4 Educator - 96 - +96 0.0 -
5 Littlemisssplendid - 84 - +84 0.0 -
6 Willow Gem - 77 - +77 0.0 -
7 Vanakkam - 93 - +93 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