Official NHA Assessment

Race 7: RACEHORSE OWNERS ASSOCIATION MR 82 HANDICAP (Open)

Line Horse
Goliath Heron
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 9
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Black Egret          3    56.5    1    0.00     2.5   78    75           78    +0
2    Successful Secret    4    54.5    2    1.25     0.0   76    76           76    +0
3    Goliath Heron        6    60.5    3    1.75     0.0   88    88           88    +0
4    Pinch Hit            2    58.5    4    2.00     1.5   82    81           81    -1
5    Vava Vegas           5    52.0    5    3.00     0.0   65    71           71    +6
6    Houston              3    59.5    6    11.00    2.5   84    81           81    -3
7    Siberian Steel       3    57.5    7    12.00    2.5   80    77           77    -3
8    Esquevelle           3    59.0    8    17.00    2.5   80    80           80    +0
99   Ready To Charge      2    57.0    99   0.00     1.5   -     78           78    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Black Egret 78 90 78 +12 2.5 -
2 Successful Secret 76 65 76 -11 0.0 -
3 Goliath Heron Line 88 86 88 -2 0.0
4 Pinch Hit 82 74 81 -7 1.5 -
5 Vava Vegas 65 58 71 -13 0.0 -
6 Houston 84 69 81 -12 2.5 -
7 Siberian Steel 80 80 77 +3 2.5 -
8 Esquevelle 80 86 80 +6 2.5 -
99 Ready To Charge - 110 78 +32 1.5 -
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