Official NHA Assessment

Race 5: TABGOLD SCORE6 AND SCORE10 MR 86 HANDICAP (Open)

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Line Horse
Victory Twist
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 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    With Pleasure        3    60.0    1    0.00     4.5   86    78           86    +0
2    Aquae Sulis          5    57.0    2    0.25     0.0   83    81           81    -2
3    Etiquette            3    56.5    3    0.85     4.5   82    75           75    -7
4    Victory Twist        4    57.5    4    1.85     2.0   81    81           81    +0
5    Straight Up          5    57.5    5    4.05     0.0   81    83           83    +2
6    Syx Hotfix           3    58.0    6    5.25     4.5   82    74           74    -8
7    Run To Denmark       6    60.0    7    6.85     0.0   86    87           87    +1
8    Spirit Of My Fate    5    55.5    8    7.25     0.0   77    78           78    +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 With Pleasure 86 97 86 +11 4.5 -
2 Aquae Sulis 83 69 81 -12 0.0 -
3 Etiquette 82 83 75 +8 4.5 -
4 Victory Twist Line 81 80 81 -1 2.0
5 Straight Up 81 79 83 -4 0.0 -
6 Syx Hotfix 82 83 74 +9 4.5 -
7 Run To Denmark 86 84 87 -3 0.0 -
8 Spirit Of My Fate 77 70 78 -8 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