Official NHA Assessment

Race 4: RACING240 FOR RACING. CLASSIFIED STAKES (For horses with nett rating of 66 and below)

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Line Horse
Give Us A Smile
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
4 / 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    The Inkosana         3    56.0    1    0.00     3.0   55    51           51    -4
2    Give Us A Smile      2    58.0    2    1.00     0.0   67    67           67    +0
3    Kanimambo            5    60.0    3    3.25     0.0   63    68           68    +5
4    Regazzo Grande       2    60.0    4    3.75     0.0   72    67           67    -5
5    Josi Mo              2    55.5    5    3.85     0.0   67    58           58    -9
6    Ellis Island         4    58.0    6    5.10     1.0   61    59           59    -2
7    San Quintin          6    58.0    7    8.35     0.0   59    61           61    +2
8    Joe Harman           4    52.0    8    8.60     1.0   56    47           47    -9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 The Inkosana 55 67 51 +16 3.0 -
2 Give Us A Smile Line 67 67 67 ✓ Match 0.0
3 Kanimambo 63 59 68 -9 0.0 -
4 Regazzo Grande 72 72 67 +5 0.0 -
5 Josi Mo 67 56 58 -2 0.0 -
6 Ellis Island 61 66 59 +7 1.0 -
7 San Quintin 59 58 61 -3 0.0 -
8 Joe Harman 56 54 47 +7 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