Official NHA Assessment

Race 2: www.tabgold.co.za MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Izibulo
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
7 / 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    Pink Diamond         6    60.0    1    0.00     0.0   60    84           66    +6
2    Izibulo              2    57.0    2    0.90     0.0   82    82           82    +0
3    Sweet Reunion        2    57.0    3    1.70     0.0   -     81           81    +81
4    Grand Occasion       2    57.0    4    3.10     0.0   77    80           80    +3
5    Safari Lodge         2    57.0    5    3.35     0.0   -     79           79    +79
6    Silver Jubilee       3    60.0    6    4.65     9.0   61    66           66    +5
7    Queen Amina          3    57.0    7    5.55     9.0   -     60           60    +60
8    Long Street          4    60.0    8    5.65     7.0   67    70           70    +3
9    Sky Kisses           2    57.0    9    7.35     0.0   -     78           78    +78
10   Fa So La Ti Do       3    53.0    10   11.75    9.0   -     52           52    +52
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pink Diamond 60 60 66 -6 0.0 -
2 Izibulo Line 82 76 82 -6 0.0
3 Sweet Reunion - 79 81 -2 0.0 -
4 Grand Occasion 77 85 80 +5 0.0 -
5 Safari Lodge - 71 79 -8 0.0 -
6 Silver Jubilee 61 58 66 -8 9.0 -
7 Queen Amina - 76 60 +16 9.0 -
8 Long Street 67 62 70 -8 7.0 -
9 Sky Kisses - 50 78 -28 0.0 -
10 Fa So La Ti Do - 48 52 -4 9.0 -
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