Official NHA Assessment

Race 2: COMMUNITY CHEST MAIDEN JUVENILE PLATE (For 2 year olds)

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Line Horse
None identified
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
8 / 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    Arturo               2    60.0    1    0.00     1.0   -     -            -     +0
2    Single File          2    60.0    2    0.10     1.0   -     -            -     +0
3    Aadehya              4    60.0    3    0.85     2.5   -     -            -     +0
4    Seethebadge          2    60.0    4    2.60     1.0   -     -            -     +0
5    Grey Smoke           2    60.0    5    2.85     1.0   -     -            -     +0
6    Guerra               4    60.0    6    3.35     2.5   -     -            -     +0
7    Regazzo Grande       2    60.0    7    5.10     1.0   -     -            -     +0
8    Shervil Glow         2    60.0    8    8.60     1.0   -     -            -     +0
9    Captain Romeo        2    60.0    9    29.60    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 Arturo - 76 - +76 1.0 -
2 Single File - 74 - +74 1.0 -
3 Aadehya - 71 - +71 2.5 -
4 Seethebadge - 45 - +45 1.0 -
5 Grey Smoke - 77 - +77 1.0 -
6 Guerra - 86 - +86 2.5 -
7 Regazzo Grande - 72 - +72 1.0 -
8 Shervil Glow - 71 - +71 1.0 -
9 Captain Romeo - - - ✓ Match 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