Official NHA Assessment

Race 3: TAB 4RACING APP MAIDEN JUVENILE PLATE (Fillies) (For 2 yof R100 000 Win BSA Bonus Series)

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Line Horse
None identified
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
9 / 10
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    Savic                2    60.0    1    0.00     0.0   -     -            -     +0
2    Amazing Colours      4    60.0    2    2.75     0.5   -     -            -     +0
3    Exclusively Yours    2    60.0    3    3.25     0.0   -     -            -     +0
4    Fire Chaser          2    60.0    4    3.50     0.0   -     -            -     +0
5    Forty Hot            2    60.0    5    4.75     0.0   -     -            -     +0
6    Stage Play           2    60.0    6    4.85     0.0   -     -            -     +0
7    Almost In Seattle    2    60.0    7    6.60     0.0   -     -            -     +0
8    Sahnish Girl         2    60.0    8    10.60    0.0   -     -            -     +0
9    Queen Lagertha       2    60.0    9    10.85    0.0   -     -            -     +0
10   Bonnies Vision       2    60.0    10   11.35    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 Savic - 69 - +69 0.0 -
2 Amazing Colours - 59 - +59 0.5 -
3 Exclusively Yours - 73 - +73 0.0 -
4 Fire Chaser - 52 - +52 0.0 -
5 Forty Hot - 61 - +61 0.0 -
6 Stage Play - 73 - +73 0.0 -
7 Almost In Seattle - 54 - +54 0.0 -
8 Sahnish Girl - 52 - +52 0.0 -
9 Queen Lagertha - - - ✓ Match 0.0 -
10 Bonnies Vision - 42 - +42 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