Official NHA Assessment

Race 1: #THISISRACING WELCOMES YOU JUVENILE PLATE (For 2 yo R60 000 Win BSA Bonus Series)

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Line Horse
None identified
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 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 Tattoo         5    60.0    1    0.00     0.0   -     -            -     +0
2    Raven Black          2    57.0    2    1.25     1.0   -     -            -     +0
3    Cool Winter          2    57.5    3    1.75     1.0   -     -            -     +0
4    Tanganga             2    57.0    4    8.25     1.0   -     -            -     +0
5    Gulf Sea             2    57.0    5    12.25    1.0   -     -            -     +0
6    Namaqua Red          2    57.0    6    12.75    1.0   -     -            -     +0
7    Joyous Jubilee (AUS  2    57.0    7    13.00    1.0   -     -            -     +0
99   Querulous            2    54.5    99   0.00     1.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Magic Tattoo - 93 - +93 0.0 -
2 Raven Black - 99 - +99 1.0 -
3 Cool Winter - 78 - +78 1.0 -
4 Tanganga - 66 - +66 1.0 -
5 Gulf Sea - - - ✓ Match 1.0 -
6 Namaqua Red - 59 - +59 1.0 -
7 Joyous Jubilee (AUS) - 61 - +61 1.0 -
99 Querulous - 73 - - 1.0 -
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