Official NHA Assessment

Race 2: LESSING, HEYNS AND VAN DER BANK INC. MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Hat Hot Hat
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
4 / 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    Magic Prince         2    56.0    1    0.00     0.0   64    58           58    -6
2    Hat Hot Hat          4    60.0    2    3.00     0.5   67    67           67    +0
3    King Of Queen        2    60.0    3    7.25     0.0   72    66           66    -6
4    Colonel Green        3    60.0    4    9.50     0.5   61    65           65    +4
5    Sexbomb (IRE)        3    60.0    5    9.75     0.5   50    65           65    +15
6    Velvet Valour        3    57.0    6    15.00    0.5   -     59           59    +59
7    Beijing Boulevard    3    57.5    7    16.75    0.5   -     60           60    +60
99   Tornado King         3    60.0    99   0.00     0.5   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Magic Prince 64 66 58 +8 0.0 -
2 Hat Hot Hat Line 67 66 67 -1 0.5
3 King Of Queen 72 65 66 -1 0.0 -
4 Colonel Green 61 62 65 -3 0.5 -
5 Sexbomb (IRE) 50 53 65 -12 0.5 -
6 Velvet Valour - 60 59 +1 0.5 -
7 Beijing Boulevard - 54 60 -6 0.5 -
99 Tornado King - 55 65 -10 0.5 -
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