Official NHA Assessment

Race 5: TAB 4RACING APP MR 72 HANDICAP (Open)

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Line Horse
Casus Belli
Reference for assessment
Exact Matches
2 / 15
Calculated = Official
Close Matches
6 / 15
Within 2 points
Significant Diffs
8 / 15
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    Arlington Action     6    59.5    1    0.00     0.0   71    84           71    +0
2    Mount Etna           4    60.0    2    1.00     3.5   72    84           84    +12
3    Casus Belli          3    55.5    3    4.10     7.0   64    64           64    +0
4    The Merciful         5    49.5    4    5.20     0.0   54    64           64    +10
5    Peace Treaty         3    59.0    5    5.70     7.0   71    69           69    -2
6    Trident King         3    57.5    6    6.30     7.0   67    66           66    -1
7    Itsnowornever        5    57.5    7    7.00     0.0   67    80           80    +13
8    Majalun              3    53.0    8    7.75     7.0   67    57           57    -10
9    Nuclear Force        5    57.0    9    9.25     0.0   66    79           79    +13
10   Full Go              6    52.5    10   13.00    0.0   56    70           70    +14
11   Six Of All           2    58.5    11   21.25    0.0   83    82           82    -1
12   Gold De Grace        4    52.5    12   22.00    3.5   52    63           63    +11
13   Fifth Of July        5    58.0    13   24.25    0.0   68    81           81    +13
14   Take No Prisoners    2    59.5    14   38.00    0.0   85    84           84    -1
99   Banha Bridge         5    61.0    99   0.00     0.0   -     87           87    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Arlington Action 71 73 71 +2 0.0 -
2 Mount Etna 72 79 84 -5 3.5 -
3 Casus Belli Line 64 64 64 ✓ Match 7.0
4 The Merciful 54 54 64 -10 0.0 -
5 Peace Treaty 71 69 69 ✓ Match 7.0 -
6 Trident King 67 65 66 -1 7.0 -
7 Itsnowornever 67 64 80 -16 0.0 -
8 Majalun 67 56 57 -1 7.0 -
9 Nuclear Force 66 61 79 -18 0.0 -
10 Full Go 56 59 70 -11 0.0 -
11 Six Of All 83 74 82 -8 0.0 -
12 Gold De Grace 52 51 63 -12 3.5 -
13 Fifth Of July 68 63 81 -18 0.0 -
14 Take No Prisoners 85 85 84 +1 0.0 -
99 Banha Bridge - 70 87 -17 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