Official NHA Assessment

Race 3: GRUNEWALD KURT / PILLAY PAUL MAIDEN PLATE (For all Maidens)

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Line Horse
Chilli Chacha
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
8 / 11
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    Bunting              4    60.0    1    0.00     1.5   -     59           6     +6
2    Gorgeous Dude        4    60.0    2    0.20     1.5   -     59           59    +59
3    Doin' Time           5    60.0    3    1.60     0.0   61    65           65    +4
4    Moon Harvest         2    60.0    4    2.50     0.0   53    64           64    +11
5    Long Gallery         3    60.0    5    2.75     2.5   68    59           59    -9
6    Chilli Chacha        2    60.0    6    3.25     0.0   64    64           64    +0
7    Tambala              3    60.0    7    4.85     2.5   -     57           57    +57
8    Evies Horizon        2    60.0    8    12.85    0.0   -     62           62    +62
9    Jolly Flagman        3    58.5    9    13.35    2.5   -     54           54    +54
10   Bad To The Bone      3    60.0    10   38.85    2.5   -     57           57    +57
99   Prince Of Dubai      2    56.0    99   0.00     0.0   -     54           54    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bunting - 58 6 +52 1.5 -
2 Gorgeous Dude - 55 59 -4 1.5 -
3 Doin' Time 61 54 65 -11 0.0 -
4 Moon Harvest 53 55 64 -9 0.0 -
5 Long Gallery 68 70 59 +11 2.5 -
6 Chilli Chacha Line 64 55 64 -9 0.0
7 Tambala - - 57 -57 2.5 -
8 Evies Horizon - 63 62 +1 0.0 -
9 Jolly Flagman - 22 54 -32 2.5 -
10 Bad To The Bone - - 57 -57 2.5 -
99 Prince Of Dubai - 54 54 ✓ Match 0.0 -
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