Official NHA Assessment

Race 4: ROAD TO DUBAI MERIT RATED 85 HANDICAP (Open)

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Line Horse
Red Top
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
5 / 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    Raining Again        6    58.5    1    0.00     0.0   82    82           82    +0
2    Kallipos             3    52.0    2    0.25     6.0   67    57           57    -10
3    Red Top              5    52.0    3    1.25     0.0   69    69           69    +0
4    Battle Of Seattle    2    58.5    4    1.35     4.0   82    74           74    -8
5    Emerald Floe         4    60.5    5    2.10     7.0   86    72           76    -10
6    Star Aglow           3    56.0    6    2.20     6.0   77    65           67    -10
7    Justadoreher         5    53.5    7    3.95     0.0   72    72           72    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Raining Again 82 73 82 -9 0.0 -
2 Kallipos 67 63 57 +6 6.0 -
3 Red Top Line 69 70 69 +1 0.0
4 Battle Of Seattle 82 59 74 -15 4.0 -
5 Emerald Floe 86 82 76 +6 7.0 -
6 Star Aglow 77 74 67 +7 6.0 -
7 Justadoreher 72 68 72 -4 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