Official NHA Assessment

Race 4: TAB TELEBET 0861 000 822 PINNACLE STAKES (Open)

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Line Horse
Dyce
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
8 / 12
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    Outofthedarkness     3    56.0    1    0.00     4.0   106   94           94    -12
2    Humdinger            3    53.0    2    1.00     4.0   103   92           93    -10
3    Bard Of Avon         3    52.0    3    1.10     4.0   94    90           90    -4
4    Dyce                 6    56.0    4    1.35     0.0   105   105          105   +0
5    Under Your Spell     3    59.0    5    3.00     4.0   117   102          107   -10
6    Supreme Quest        3    53.0    6    4.25     4.0   104   89           94    -10
7    Duke Of Sussex       4    54.0    7    4.75     2.5   100   93           93    -7
8    Cirillo              6    58.0    8    6.50     0.0   109   106          106   -3
9    Prince Of Fire       3    60.0    9    7.75     4.0   113   102          103   -10
10   Team Gold            3    56.0    10   7.80     4.0   103   94           94    -9
11   Fateful Day          3    49.5    11   9.50     4.0   90    81           81    -9
12   Eliud                4    60.0    12   10.50    2.5   112   105          105   -7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Outofthedarkness 106 101 94 +7 4.0 -
2 Humdinger 103 119 93 +26 4.0 -
3 Bard Of Avon 94 105 90 +15 4.0 -
4 Dyce Line 105 128 105 +23 0.0
5 Under Your Spell 117 113 107 +6 4.0 -
6 Supreme Quest 104 92 94 -2 4.0 -
7 Duke Of Sussex 100 96 93 +3 2.5 -
8 Cirillo 109 98 106 -8 0.0 -
9 Prince Of Fire 113 104 103 +1 4.0 -
10 Team Gold 103 97 94 +3 4.0 -
11 Fateful Day 90 93 81 +12 4.0 -
12 Eliud 112 112 105 +7 2.5 -
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