Official NHA Assessment

Race 2: PAY YOUR MTC SUBS MERIT RATED 65 HANDICAP (Open)

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Line Horse
Ultra Pursuit
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 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    Karvani              7    60.0    1    0.00     0.0   65    82           65    +0
2    Ultra Pursuit        3    59.5    2    2.00     5.0   74    74           74    +0
3    House Of Lords       3    52.0    3    2.10     5.0   48    59           59    +11
4    Jet Green            4    55.5    4    7.10     2.5   56    68           68    +12
5    Ono No Komachi       3    59.5    5    9.60     5.0   64    71           71    +7
6    Zambezi Sunset       2    52.5    6    16.60    0.0   60    67           67    +7
7    Prince Of Denmark    4    54.0    7    99.99    2.5   53    65           65    +12
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Karvani 65 73 65 +8 0.0 -
2 Ultra Pursuit Line 74 78 74 +4 5.0
3 House Of Lords 48 49 59 -10 5.0 -
4 Jet Green 56 54 68 -14 2.5 -
5 Ono No Komachi 64 66 71 -5 5.0 -
6 Zambezi Sunset 60 60 67 -7 0.0 -
7 Prince Of Denmark 53 51 65 -14 2.5 -
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