Official NHA Assessment

Race 3: www.tabgold.co.za MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

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Line Horse
Sky Cafe
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
10 / 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    Indigo Fields        3    60.0    1    0.00     5.0   69    70           70    +1
2    Amarandi             3    60.0    2    4.00     5.0   78    70           70    -8
3    Sky Cafe             3    60.0    3    6.10     5.0   70    70           70    +0
4    Guest Getorixx       4    60.0    4    9.00     6.0   -     68           68    +68
5    Raspberry Beret      3    60.0    5    10.05    5.0   71    70           70    -1
6    Black Peppercorn     3    60.0    6    10.30    5.0   61    70           70    +9
7    Impeccable You       3    57.5    7    16.80    5.0   56    65           65    +9
99   Winter Journey       3    60.0    99   0.00     5.0   -     70           70    +0
99   Queen Mercury        4    60.0    99   0.00     6.0   -     68           68    +0
99   Run Again            3    60.0    99   0.00     5.0   -     70           70    +0
99   Panchita             3    60.0    99   0.00     5.0   -     70           70    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Indigo Fields 69 77 70 +7 5.0 -
2 Amarandi 78 91 70 +21 5.0 -
3 Sky Cafe Line 70 58 70 -12 5.0
4 Guest Getorixx - 63 68 -5 6.0 -
5 Raspberry Beret 71 61 70 -9 5.0 -
6 Black Peppercorn 61 52 70 -18 5.0 -
7 Impeccable You 56 46 65 -19 5.0 -
99 Winter Journey - 50 70 -20 5.0 -
99 Queen Mercury - 56 68 -12 6.0 -
99 Run Again - 48 70 -22 5.0 -
99 Panchita - 40 70 -30 5.0 -
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