Official NHA Assessment

Race 4: HEINEKEN SA NURSERY (Grade 2) (For 2 yo R60 000 Win BSA Bonus Series)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
9 / 9
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    Miss Cool            2    57.5    1    0.00     2.0   -     -            -     +0
2    Union Square         2    60.0    2    3.75     2.0   -     -            -     +0
3    Thunderstone         2    60.0    3    4.95     2.0   -     -            -     +0
4    Laguna Verde         5    60.0    4    5.15     0.0   -     -            -     +0
5    Karangetang          2    60.0    5    6.45     2.0   -     -            -     +0
6    Cool Winter          2    60.0    6    6.65     2.0   -     -            -     +0
7    Magic Tattoo         5    60.0    7    10.95    0.0   -     -            -     +0
8    Var Park             5    60.0    8    12.70    0.0   -     -            -     +0
9    Set To Go            2    60.0    9    14.45    2.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Miss Cool - 106 - +106 2.0 -
2 Union Square - 110 - +110 2.0 -
3 Thunderstone - 86 - +86 2.0 -
4 Laguna Verde - 86 - +86 0.0 -
5 Karangetang - 95 - +95 2.0 -
6 Cool Winter - 78 - +78 2.0 -
7 Magic Tattoo - 93 - +93 0.0 -
8 Var Park - 87 - +87 0.0 -
9 Set To Go - 84 - +84 2.0 -
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