Official NHA Assessment

Race 5: RACING240 FOR RACING. FOR YOU MR 81 HANDICAP (Open)

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Line Horse
Jack In The Green
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
7 / 9
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    Juan Carlos          7    60.0    1    0.00     0.0   81    76           81    +0
2    Prime Venture        3    57.0    2    1.00     6.0   76    64           66    -10
3    Jack In The Green    2    58.0    3    1.10     0.0   78    78           78    +0
4    Anatolian Silver     3    59.0    4    2.60     6.0   80    66           70    -10
5    Catch The Tune       6    59.5    5    2.65     0.0   80    79           79    -1
6    Alado's Pride        7    58.5    6    4.65     0.0   78    74           74    -4
7    Painite              5    59.0    7    4.90     0.0   79    74           74    -5
8    Thunder Master       6    59.0    8    9.40     0.0   79    74           74    -5
9    Red William          5    56.5    9    10.15    0.0   74    69           69    -5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Juan Carlos 81 93 81 +12 0.0 -
2 Prime Venture 76 78 66 +12 6.0 -
3 Jack In The Green Line 78 80 78 +2 0.0
4 Anatolian Silver 80 78 70 +8 6.0 -
5 Catch The Tune 80 70 79 -9 0.0 -
6 Alado's Pride 78 73 74 -1 0.0 -
7 Painite 79 82 74 +8 0.0 -
8 Thunder Master 79 80 74 +6 0.0 -
9 Red William 74 83 69 +14 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