Official NHA Assessment

Race 2: MOBILE BETTING VISIT www.trackandball.co.za MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Westockmarketborse
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
4 / 7
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    Westockmarketborse   2    60.0    1    0.00     0.0   74    74           74    +0
2    Rainbow Of Roses     3    60.0    2    1.20     5.0   72    70           70    -2
3    Joan The Wad         4    60.0    3    5.10     2.5   72    69           69    -3
4    Floral Fantasy       3    60.0    4    5.70     5.0   -     64           64    +64
5    Flying Dragon        2    60.0    5    8.90     0.0   69    74           74    +5
99   Lady Potalaa         3    60.0    99   0.00     5.0   -     64           64    +0
99   Lady Is A Champ      2    60.0    99   0.00     0.0   -     74           74    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Westockmarketborse Line 74 74 74 ✓ Match 0.0
2 Rainbow Of Roses 72 66 70 -4 5.0 -
3 Joan The Wad 72 53 69 -16 2.5 -
4 Floral Fantasy - 59 64 -5 5.0 -
5 Flying Dragon 69 61 74 -13 0.0 -
99 Lady Potalaa - 52 64 -12 5.0 -
99 Lady Is A Champ - 57 74 -17 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