Official NHA Assessment

Race 5: GOLD CIRCLE RACING YOUTUBE CHANNEL MR 68 HANDICAP (Open)

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Line Horse
Hey Bill
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
5 / 9
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    Deep Global          4    48.0    1    0.00     2.0   51    42           51    +0
2    Hey Bill             4    57.5    2    1.30     2.0   66    66           66    +0
3    Flying Grace         4    61.5    3    1.45     2.0   71    74           74    +3
4    Lord Minver          3    49.5    4    2.15     4.5   55    45           45    -10
5    Final Occasion       6    52.5    5    3.75     0.0   53    57           57    +4
6    Rocky Coast          6    54.5    6    4.55     0.0   57    60           60    +3
7    Winter Royale        4    56.0    7    4.70     2.0   60    59           59    -1
8    Techno Savvy         4    55.5    8    17.20    2.0   59    57           57    -2
99   Syx Hotfix           3    56.5    99   0.00     4.5   -     54           54    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Deep Global 51 54 51 +3 2.0 -
2 Hey Bill Line 66 71 66 +5 2.0
3 Flying Grace 71 63 74 -11 2.0 -
4 Lord Minver 55 53 45 +8 4.5 -
5 Final Occasion 53 52 57 -5 0.0 -
6 Rocky Coast 57 52 60 -8 0.0 -
7 Winter Royale 60 53 59 -6 2.0 -
8 Techno Savvy 59 62 57 +5 2.0 -
99 Syx Hotfix - 83 54 +29 4.5 -
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