Official NHA Assessment

Race 1: CHIMICHURI RUN (2019) MAIDEN JUVENILE PLATE (For 2 yo R100 000 Win BSA / CRS Bonus Series)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
10 / 10
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    Let's Go Lola        2    57.5    1    0.00     1.5   -     -            -     +0
2    That'll B The Day    2    60.0    2    0.40     1.5   -     -            -     +0
3    World Of Royalty     2    60.0    3    0.65     1.5   -     -            -     +0
4    Master Silvano       2    60.0    4    1.35     1.5   -     -            -     +0
5    Mfethu               2    60.0    5    1.65     1.5   -     -            -     +0
6    Raging Moon          2    60.0    6    4.85     1.5   -     -            -     +0
7    Pied Piper           2    60.0    7    6.45     1.5   -     -            -     +0
8    Olive Grove          2    57.5    8    6.95     1.5   -     -            -     +0
9    Jenny Darling        2    57.5    9    11.55    1.5   -     -            -     +0
10   The Scarlet Cat      2    53.5    10   18.55    1.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Let's Go Lola - 91 - +91 1.5 -
2 That'll B The Day - 81 - +81 1.5 -
3 World Of Royalty - 86 - +86 1.5 -
4 Master Silvano - 73 - +73 1.5 -
5 Mfethu - 84 - +84 1.5 -
6 Raging Moon - 68 - +68 1.5 -
7 Pied Piper - 79 - +79 1.5 -
8 Olive Grove - 68 - +68 1.5 -
9 Jenny Darling - 62 - +62 1.5 -
10 The Scarlet Cat - 56 - +56 1.5 -
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