Official NHA Assessment

Race 6: 4RACING THANKS AND APPRECIATES STUART PETTIGREW PINNACLE STAKES (Open)

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Line Horse
Mover And Shaker
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
6 / 8
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    Sheldon              6    56.0    1    0.00     0.0   106   112          112   +6
2    Mover And Shaker     5    53.5    2    1.20     0.0   107   107          107   +0
3    Captain Hindsight    5    52.0    3    2.85     0.0   94    104          104   +10
4    Godswood             4    56.0    4    5.15     12.0  108   88           98    -10
5    Flowerbomb           2    52.5    5    5.65     7.0   105   91           95    -10
6    Winter Stories       4    54.0    6    6.15     12.0  104   84           94    -10
7    Rollwiththepunches   6    58.0    7    6.40     0.0   112   116          116   +4
8    Mercantour           5    60.0    8    7.00     0.0   116   120          120   +4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sheldon 106 106 112 -6 0.0 -
2 Mover And Shaker Line 107 109 107 +2 0.0
3 Captain Hindsight 94 112 104 +8 0.0 -
4 Godswood 108 106 98 +8 12.0 -
5 Flowerbomb 105 87 95 -8 7.0 -
6 Winter Stories 104 95 94 +1 12.0 -
7 Rollwiththepunches 112 90 116 -26 0.0 -
8 Mercantour 116 113 120 -7 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