Official NHA Assessment

Race 5: TAB TELEBET 0861 000 822 PINNACLE STAKES (For all horses)

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Line Horse
Miss Orange
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
3 / 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    Divine Odyssey       7    62.0    1    0.00     0.0   112   105          105   -7
2    Magnum Fire          7    52.0    2    2.25     0.0   75    89           89    +14
3    Miss Orange          5    54.5    3    2.50     0.0   94    94           94    +0
4    Charlie Mccreevy     6    52.0    4    4.75     0.0   62    85           85    +23
5    Ellis Island         4    52.5    5    8.00     3.5   66    79           79    +13
6    Aranjuez             7    61.0    6    9.25     0.0   103   103          103   +0
7    Proud Warrior        5    52.0    7    16.50    0.0   55    85           85    +30
8    Port Key             6    52.0    8    18.75    0.0   69    85           85    +16
9    Master Supreme       5    57.0    9    19.75    0.0   97    95           95    -2
10   Rattle Mouse         5    53.0    10   23.50    0.0   89    87           87    -2
11   Blackball            7    61.0    11   99.99    0.0   104   103          103   -1
12   In Auro              5    54.0    12   99.99    0.0   77    89           89    +12
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Divine Odyssey 112 107 105 +2 0.0 -
2 Magnum Fire 75 59 89 -30 0.0 -
3 Miss Orange Line 94 86 94 -8 0.0
4 Charlie Mccreevy 62 62 85 -23 0.0 -
5 Ellis Island 66 66 79 -13 3.5 -
6 Aranjuez 103 103 103 ✓ Match 0.0 -
7 Proud Warrior 55 51 85 -34 0.0 -
8 Port Key 69 62 85 -23 0.0 -
9 Master Supreme 97 87 95 -8 0.0 -
10 Rattle Mouse 89 85 87 -2 0.0 -
11 Blackball 104 100 103 -3 0.0 -
12 In Auro 77 69 89 -20 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