Official NHA Assessment

Race 5: 4RACING.TV MR 90 HANDICAP (Open)

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Line Horse
Cool Winter
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
5 / 10
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    Tuscan Gold          2    53.5    1    0.00     5.0   77    77           77    +0
2    Light That Loose     4    58.0    2    0.25     9.0   86    78           78    -8
3    Cool Winter          2    56.5    3    1.50     5.0   83    83           83    +0
4    Whatever Next        6    57.0    4    2.25     0.0   84    94           94    +10
5    Great Melody         3    54.5    5    3.25     7.5   78    74           74    -4
6    Transact             3    57.5    6    3.50     7.5   85    80           80    -5
7    Giacomo Puccini      4    54.5    7    3.60     9.0   79    71           71    -8
8    Captain Morisco      4    61.5    8    6.10     9.0   93    85           85    -8
9    Spydas Corner        4    57.5    9    6.35     9.0   85    77           77    -8
10   Adios Amigos         4    55.0    10   8.10     9.0   79    72           72    -7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tuscan Gold 77 84 77 +7 5.0 -
2 Light That Loose 86 86 78 +8 9.0 -
3 Cool Winter Line 83 78 83 -5 5.0
4 Whatever Next 84 73 94 -21 0.0 -
5 Great Melody 78 79 74 +5 7.5 -
6 Transact 85 77 80 -3 7.5 -
7 Giacomo Puccini 79 72 71 +1 9.0 -
8 Captain Morisco 93 92 85 +7 9.0 -
9 Spydas Corner 85 82 77 +5 9.0 -
10 Adios Amigos 79 55 72 -17 9.0 -
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