Official NHA Assessment

Race 8: JOIN THE SOCIAL SQUAD SYNDICATE TODAY www.socialsquad.co.za APPRENTICE CLASS 5 (F & M) (For Fillies & Mares. Benchmark a

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Line Horse
Jazz Diva
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
5 / 9
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    Mystique Rouge       3    53.0    1    0.00     1.5   64    64           64    +0
2    Vaans Spirit         3    57.0    2    3.70     1.5   73    73           73    +0
3    K M V Retrofit       3    57.0    3    3.90     1.5   69    73           73    +4
4    Jazz Diva            3    55.5    4    4.30     1.5   69    69           69    +0
5    Nebulous             2    58.5    5    8.30     0.0   76    78           78    +2
6    Grue Of Ice          6    49.5    6    9.60     0.0   54    60           60    +6
7    Blonde Bombshell     2    52.0    7    9.90     0.0   60    65           65    +5
8    Time In Paris        4    53.0    8    10.00    0.5   59    66           66    +7
9    Spring Kiss          3    57.0    9    11.00    1.5   64    72           72    +8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mystique Rouge 64 71 64 +7 1.5 -
2 Vaans Spirit 73 74 73 +1 1.5 -
3 K M V Retrofit 69 69 73 -4 1.5 -
4 Jazz Diva Line 69 69 69 ✓ Match 1.5
5 Nebulous 76 74 78 -4 0.0 -
6 Grue Of Ice 54 53 60 -7 0.0 -
7 Blonde Bombshell 60 58 65 -7 0.0 -
8 Time In Paris 59 56 66 -10 0.5 -
9 Spring Kiss 64 64 72 -8 1.5 -
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