Official NHA Assessment

Race 4: WORLD SPORTS BETTING SA FILLIES NURSERY (Grade 2) (For 2 yof R100 000 Win BSA Bonus Series)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
11 / 11
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    Mrs Geriatrix        2    60.0    1    0.00     2.0   -     -            -     +0
2    Red Hot Rose         2    60.0    2    0.20     2.0   -     -            -     +0
3    So Seductive         2    60.0    3    3.90     2.0   -     -            -     +0
4    Cullinan Blue        2    60.0    4    4.00     2.0   -     -            -     +0
5    Leaving Las Vegas    2    60.0    5    4.15     2.0   -     -            -     +0
6    Rani Of Kittur       4    60.0    6    4.90     3.5   -     -            -     +0
7    Miss Hannigan        4    60.0    7    7.50     3.5   -     -            -     +0
8    Mist In Scotland     2    60.0    8    9.00     2.0   -     -            -     +0
9    Sigrid Swing         4    60.0    9    11.50    3.5   -     -            -     +0
10   American Graffiti    2    60.0    10   17.00    2.0   -     -            -     +0
11   Heirloom             4    60.0    11   17.25    3.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mrs Geriatrix - 112 - +112 2.0 -
2 Red Hot Rose - 88 - +88 2.0 -
3 So Seductive - 89 - +89 2.0 -
4 Cullinan Blue - 106 - +106 2.0 -
5 Leaving Las Vegas - 89 - +89 2.0 -
6 Rani Of Kittur - 94 - +94 3.5 -
7 Miss Hannigan - 100 - +100 3.5 -
8 Mist In Scotland - 77 - +77 2.0 -
9 Sigrid Swing - 70 - +70 3.5 -
10 American Graffiti - 90 - +90 2.0 -
11 Heirloom - 67 - +67 3.5 -
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