Official NHA Assessment

Race 4: PLAY SOCCER 6, 10 AND 13 CLASSIFIED STAKES (For horses with nett rating of 71 and below)

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Line Horse
Great Affair
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    Mohandas             3    60.0    1    0.00     7.0   71    52           52    -19
2    Ellis Island         4    56.0    2    0.75     3.5   60    56           56    -4
3    Great Affair         7    60.0    3    2.50     0.0   70    70           70    +0
4    Then In Focus        2    57.5    4    6.75     0.0   72    61           62    -10
5    Mingshi              4    54.0    5    13.75    3.5   57    47           47    -10
6    Desert Fox           3    56.0    6    42.75    7.0   63    44           53    -10
7    Twice In Camden      3    50.0    7    52.00    7.0   46    32           36    -10
8    Spirit Princess      2    51.5    8    99.92    0.0   61    49           51    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mohandas 71 64 52 +12 7.0 -
2 Ellis Island 60 66 56 +10 3.5 -
3 Great Affair Line 70 63 70 -7 0.0
4 Then In Focus 72 71 62 +9 0.0 -
5 Mingshi 57 56 47 +9 3.5 -
6 Desert Fox 63 57 53 +4 7.0 -
7 Twice In Camden 46 46 36 +10 7.0 -
8 Spirit Princess 61 51 51 ✓ 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