Official NHA Assessment

Race 2: AL KAHTAN MERIT RATED 70 HANDICAP (Open)

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Line Horse
Mill Creek
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
2 / 6
Within 2 points
Significant Diffs
4 / 6
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    Cool Solution        9    54.5    1    0.00     0.0   59    59           59    +0
2    Mill Creek           7    52.0    2    0.10     0.0   54    54           54    +0
3    Mackelroy            4    58.0    3    2.10     4.0   71    58           61    -10
4    Al Mashriq           4    56.0    4    8.10     4.0   62    54           54    -8
5    Aneksi               4    51.0    5    9.85     4.0   58    44           48    -10
6    Veseo                5    60.0    6    28.85    0.0   70    70           70    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cool Solution 59 51 59 -8 0.0 -
2 Mill Creek Line 54 55 54 +1 0.0
3 Mackelroy 71 70 61 +9 4.0 -
4 Al Mashriq 62 71 54 +17 4.0 -
5 Aneksi 58 50 48 +2 4.0 -
6 Veseo 70 64 70 -6 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