Official NHA Assessment

Race 7: BETWAY PINNACLE STAKES (Open to all horses)

Back to Race
Line Horse
Dyce
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
5 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Dyce                 6    62.0    1    0.00     0.0   128   128          128   +0
2    Cliff Hanger         2    56.0    2    2.00     5.5   111   105          105   -6
3    Tchaikovsky          6    50.0    3    2.25     0.0   82    104          104   +22
4    Troppo Veloce        2    52.5    4    2.50     5.5   108   98           98    -10
5    Sheldon              6    56.0    5    3.75     0.0   112   116          116   +4
6    Halberdier           4    50.0    6    4.05     10.0  88    84           84    -4
7    Quantum Theory       5    56.0    7    4.10     0.0   112   116          116   +4
8    Danilo Danilovitch   3    46.0    8    13.75    8.5   93    79           83    -10
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dyce Line 128 128 128 ✓ Match 0.0
2 Cliff Hanger 111 111 105 +6 5.5 -
3 Tchaikovsky 82 81 104 -23 0.0 -
4 Troppo Veloce 108 104 98 +6 5.5 -
5 Sheldon 112 106 116 -10 0.0 -
6 Halberdier 88 83 84 -1 10.0 -
7 Quantum Theory 112 112 116 -4 0.0 -
8 Danilo Danilovitch 93 89 83 +6 8.5 -
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