Official NHA Assessment

Race 7: BETWAY PINNACLE STAKES (For all horses)

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Line Horse
Quantum Theory
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
7 / 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    Melech               5    58.0    1    0.00     0.0   116   114          114   -2
2    Quantum Theory       5    58.0    2    0.75     0.0   114   114          114   +0
3    Main Defender        4    58.0    3    1.25     5.0   121   104          111   -10
4    Swing Upon A Star    2    52.0    4    3.00     3.0   103   96           96    -7
5    Power Broker         2    52.0    5    3.40     3.0   104   96           96    -8
6    Captain Peg          5    52.5    6    6.40     0.0   109   103          103   -6
7    Gobsmacked           2    52.5    7    7.00     3.0   108   97           98    -10
8    Flowerbomb           2    50.5    8    7.10     3.0   103   93           93    -10
9    Mujbar (GB)          6    52.0    9    8.10     0.0   105   102          102   -3
10   Danilo Danilovitch   3    48.0    10   8.60     4.5   105   85           95    -10
11   Trompie              2    52.0    11   9.75     3.0   102   96           96    -6
12   Eye Of The Prophet   2    60.0    12   17.00    3.0   119   112          112   -7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Melech 116 118 114 +4 0.0 -
2 Quantum Theory Line 114 112 114 -2 0.0
3 Main Defender 121 130 111 +19 5.0 -
4 Swing Upon A Star 103 102 96 +6 3.0 -
5 Power Broker 104 102 96 +6 3.0 -
6 Captain Peg 109 100 103 -3 0.0 -
7 Gobsmacked 108 106 98 +8 3.0 -
8 Flowerbomb 103 87 93 -6 3.0 -
9 Mujbar (GB) 105 103 102 +1 0.0 -
10 Danilo Danilovitch 105 89 95 -6 4.5 -
11 Trompie 102 107 96 +11 3.0 -
12 Eye Of The Prophet 119 108 112 -4 3.0 -
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