Official NHA Assessment

Race 5: COMPUTAFORM MR 78 HANDICAP (Open)

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Line Horse
Look Yourself
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
10 / 11
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    Valencia             4    48.0    1    0.00     2.5   61    64           61    +0
2    Zanetto              4    54.5    2    0.30     2.5   67    82           82    +15
3    Look Yourself        3    59.0    3    2.50     4.0   85    85           85    +0
4    Secret Is Ours       4    55.5    4    2.75     2.5   69    81           81    +12
5    Ablaan               3    60.0    5    6.25     4.0   87    85           85    -2
6    Riccardo             7    56.0    6    11.25    0.0   70    85           85    +15
7    Dragon Queen         4    52.0    7    14.00    2.5   57    72           72    +15
8    Battleoftrafalgar    5    58.0    8    14.75    0.0   74    89           89    +15
9    Emerald Princess     3    56.5    9    17.50    4.0   80    78           78    -2
99   Top Drawer           4    54.5    99   0.00     2.5   -     77           77    +0
99   In Cahoots           6    59.0    99   0.00     0.0   -     91           91    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Valencia 61 69 61 +8 2.5 -
2 Zanetto 67 86 82 +4 2.5 -
3 Look Yourself Line 85 94 85 +9 4.0
4 Secret Is Ours 69 66 81 -15 2.5 -
5 Ablaan 87 75 85 -10 4.0 -
6 Riccardo 70 68 85 -17 0.0 -
7 Dragon Queen 57 52 72 -20 2.5 -
8 Battleoftrafalgar 74 71 89 -18 0.0 -
9 Emerald Princess 80 98 78 +20 4.0 -
99 Top Drawer - 67 77 -10 2.5 -
99 In Cahoots - 54 91 -37 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