Official NHA Assessment

Race 2: BETONTAB.CO.ZA PROGRESS PLATE (For 1,2 & 3 time winners & Maidens)

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Line Horse
Willow Express
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
5 / 6
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    Majestic Mozart      6    61.0    1    0.00     0.0   114   97           70    -44
2    William Robertson    6    60.0    2    0.20     0.0   105   95           95    -10
3    Willow Express       7    60.5    3    0.60     0.0   101   101          101   +0
4    Indlamu              4    60.5    4    2.75     2.5   99    93           93    -6
5    Pack Leader          7    60.5    5    11.75    0.0   101   96           96    -5
99   Capetown Affair      5    56.5    99   0.00     0.0   -     88           88    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Majestic Mozart 114 112 70 +42 0.0 -
2 William Robertson 105 124 95 +29 0.0 -
3 Willow Express Line 101 82 101 -19 0.0
4 Indlamu 99 86 93 -7 2.5 -
5 Pack Leader 101 92 96 -4 0.0 -
99 Capetown Affair - 59 88 -29 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