Official NHA Assessment

Race 3: SUMMER CUP 29 NOVEMBER MR 74 HANDICAP (Open)

Back to Race
Line Horse
Trident King
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
6 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Tommy Shelby         2    56.0    1    0.00     0.0   85    69           85    +0
2    Copper Eagle         2    57.0    2    0.80     0.0   87    75           77    -10
3    Unsolved Riddle      3    62.0    3    1.70     1.0   78    82           82    +4
4    Trident King         3    58.0    4    3.20     1.0   73    73           73    +0
5    Laughing William     5    59.5    5    4.00     0.0   73    77           77    +4
6    War Reporter         3    59.5    6    4.10     1.0   75    75           75    +0
7    Vava Vegas           5    54.0    7    5.90     0.0   65    65           65    +0
8    Carnelo              6    55.0    8    6.80     0.0   64    67           67    +3
9    Guy Alexander        3    54.5    9    8.30     1.0   71    64           64    -7
10   Panning Gold         3    59.0    10   10.30    1.0   74    73           73    -1
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tommy Shelby 85 101 85 +16 0.0 -
2 Copper Eagle 87 100 77 +23 0.0 -
3 Unsolved Riddle 78 77 82 -5 1.0 -
4 Trident King Line 73 65 73 -8 1.0
5 Laughing William 73 75 77 -2 0.0 -
6 War Reporter 75 72 75 -3 1.0 -
7 Vava Vegas 65 58 65 -7 0.0 -
8 Carnelo 64 75 67 +8 0.0 -
9 Guy Alexander 71 72 64 +8 1.0 -
10 Panning Gold 74 68 73 -5 1.0 -
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