Official NHA Assessment

Race 1: WELCOME TO THE HENNENMAN MEMORIAL JUVENILE PLATE (For 2 yo R100 000 Win BSA / CRS Bonus)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
7 / 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    Truth                2    60.0    1    0.00     2.0   -     -            -     +0
2    Zanthar              3    60.0    2    4.25     3.0   -     -            -     +0
3    Zip Code             3    60.0    3    5.75     3.0   -     -            -     +0
4    Panning Gold         3    60.0    4    9.50     3.0   -     -            -     +0
5    Spring Tradition     3    60.0    5    12.25    3.0   -     -            -     +0
6    Quiz Party           2    60.0    6    12.30    2.0   -     -            -     +0
7    Busstopinhounslow    3    56.0    7    12.50    3.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Truth - 120 - +120 2.0 -
2 Zanthar - 80 - +80 3.0 -
3 Zip Code - 77 - +77 3.0 -
4 Panning Gold - 68 - +68 3.0 -
5 Spring Tradition - 81 - +81 3.0 -
6 Quiz Party - 65 - +65 2.0 -
7 Busstopinhounslow - 110 - +110 3.0 -
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