Official NHA Assessment

Race 3: WWW.TAB4RACING.COM MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)

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Line Horse
Play With Fire
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 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    Martinique           2    58.0    1    0.00     0.0   62    70           68    +6
2    Darling Harbour      4    58.0    2    0.20     3.5   69    63           63    -6
3    Perform              2    60.0    3    2.00     0.0   59    79           79    +20
4    Play With Fire       4    58.0    4    2.05     3.5   68    68           68    +0
5    Voshaarnooi          2    60.0    5    6.25     0.0   52    74           74    +22
6    All Rise             3    60.0    6    10.50    7.0   57    60           60    +3
7    Outer Dimension      2    58.0    7    10.55    0.0   72    70           70    -2
99   Crimson Forest       3    58.0    99   0.00     7.0   -     56           56    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Martinique 62 66 68 -2 0.0 -
2 Darling Harbour 69 60 63 -3 3.5 -
3 Perform 59 54 79 -25 0.0 -
4 Play With Fire Line 68 79 68 +11 3.5
5 Voshaarnooi 52 50 74 -24 0.0 -
6 All Rise 57 50 60 -10 7.0 -
7 Outer Dimension 72 70 70 ✓ Match 0.0 -
99 Crimson Forest - 71 56 +15 7.0 -
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