Official NHA Assessment

Race 4: TABGOLD SCORE6 AND SCORE10 MR 65 HANDICAP (Open)

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Line Horse
Vengeance Forever
Reference for assessment
Exact Matches
0 / 15
Calculated = Official
Close Matches
1 / 15
Within 2 points
Significant Diffs
10 / 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    Action Stations      2    57.0    1    0.00     0.0   66    60           66    +0
2    Hallerbos            3    59.0    2    0.30     2.0   63    65           65    +2
3    Fever                5    56.0    3    0.80     0.0   57    62           62    +5
4    Vengeance Forever    3    57.5    4    2.10     2.0   60    60           60    +0
5    Arrow's Mark         6    56.0    5    2.30     0.0   57    60           60    +3
6    Exceed Expectation   3    55.5    6    2.40     2.0   56    55           55    -1
7    Gregor Macgregor     4    54.5    7    3.90     0.5   57    55           55    -2
8    Barbatti             3    56.5    8    4.20     2.0   58    56           56    -2
9    Rafiki               2    60.0    9    4.50     0.0   69    66           66    -3
10   Living Waters        5    59.0    10   4.60     0.0   63    64           64    +1
11   Porfirio             6    59.5    11   5.10     0.0   64    65           65    +1
12   Majestic Power       3    59.0    12   13.10    2.0   63    60           60    -3
99   National Dream       6    52.5    99   0.00     0.0   -     51           51    +0
99   Ebony Bay            3    59.0    99   0.00     2.0   -     60           60    +0
99   Justfortheepenny     5    55.0    99   0.00     0.0   -     56           56    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Action Stations 66 71 66 +5 0.0 -
2 Hallerbos 63 57 65 -8 2.0 -
3 Fever 57 52 62 -10 0.0 -
4 Vengeance Forever Line 60 51 60 -9 2.0
5 Arrow's Mark 57 54 60 -6 0.0 -
6 Exceed Expectation 56 52 55 -3 2.0 -
7 Gregor Macgregor 57 63 55 +8 0.5 -
8 Barbatti 58 47 56 -9 2.0 -
9 Rafiki 69 67 66 +1 0.0 -
10 Living Waters 63 59 64 -5 0.0 -
11 Porfirio 64 88 65 +23 0.0 -
12 Majestic Power 63 63 60 +3 2.0 -
99 National Dream - 68 51 +17 0.0 -
99 Ebony Bay - 50 60 -10 2.0 -
99 Justfortheepenny - 65 56 +9 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