Official NHA Assessment

Race 4: BETWAY MR 80 HANDICAP (Open)

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Line Horse
Kotinos
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
3 / 7
Within 2 points
Significant Diffs
3 / 7
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    Turbo Power          3    57.0    1    0.00     10.5  79    74           79    +0
2    Nettleton            3    59.5    2    0.25     10.5  79    79           79    +0
3    Kotinos              3    57.5    3    1.75     10.5  75    75           75    +0
4    Fostinovo            3    60.5    4    2.25     10.5  81    81           81    +0
5    Ride On              2    59.5    5    3.00     7.0   79    86           86    +7
6    Sovereigns Call      4    56.0    6    3.50     12.0  72    69           69    -3
7    French Impact        2    57.5    7    3.80     7.0   75    82           82    +7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Turbo Power 79 83 79 +4 10.5 -
2 Nettleton 79 100 79 +21 10.5 -
3 Kotinos Line 75 59 75 -16 10.5
4 Fostinovo 81 80 81 -1 10.5 -
5 Ride On 79 87 86 +1 7.0 -
6 Sovereigns Call 72 70 69 +1 12.0 -
7 French Impact 75 72 82 -10 7.0 -
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