Official NHA Assessment

Race 4: www.tabgold.co.za FM 74 APPRENTICE HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Just Virginia
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 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    Sing For Winter      2    55.0    1    0.00     0.0   78    72           78    +0
2    Just Virginia        2    53.0    2    0.80     0.0   74    74           74    +0
3    Chelsea Flower       6    57.5    3    1.20     0.0   75    83           83    +8
4    Rise                 5    55.0    4    1.50     0.0   69    77           77    +8
5    Danse Milord         3    54.0    5    1.90     7.0   66    61           61    -5
6    You Deserve It       4    55.0    6    4.40     3.5   72    66           66    -6
7    Blazing Astute       3    56.5    7    6.40     7.0   73    61           63    -10
8    Mel's Princess       3    59.0    8    11.20    7.0   73    66           66    -7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sing For Winter 78 72 78 -6 0.0 -
2 Just Virginia Line 74 56 74 -18 0.0
3 Chelsea Flower 75 77 83 -6 0.0 -
4 Rise 69 69 77 -8 0.0 -
5 Danse Milord 66 94 61 +33 7.0 -
6 You Deserve It 72 67 66 +1 3.5 -
7 Blazing Astute 73 74 63 +11 7.0 -
8 Mel's Princess 73 77 66 +11 7.0 -
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