Official NHA Assessment

Race 4: TAB TELEBET 0861 000 822 MR 96 HANDICAP (Open)

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Line Horse
Stone Cold
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
7 / 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    City By The Sea      4    56.5    1    0.00     1.0   89    86           89    +0
2    Noble Sniper         3    52.0    2    0.75     2.5   84    78           78    -6
3    Irish Tractor        4    59.5    3    1.25     1.0   95    96           96    +1
4    Stone Cold           4    60.0    4    1.50     1.0   96    96           96    +0
5    Mardi Gras           7    61.5    5    1.75     0.0   102   101          101   -1
6    Nordic Rebel         8    56.5    6    3.25     0.0   89    90           90    +1
7    Theory Of Flight     4    59.0    7    8.50     1.0   94    91           91    -3
8    Noble Striker        3    59.5    8    8.75     2.5   100   89           90    -10
99   Captain Chorus       5    57.0    99   0.00     0.0   -     89           89    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 City By The Sea 89 74 89 -15 1.0 -
2 Noble Sniper 84 71 78 -7 2.5 -
3 Irish Tractor 95 102 96 +6 1.0 -
4 Stone Cold Line 96 94 96 -2 1.0
5 Mardi Gras 102 83 101 -18 0.0 -
6 Nordic Rebel 89 81 90 -9 0.0 -
7 Theory Of Flight 94 91 91 ✓ Match 1.0 -
8 Noble Striker 100 98 90 +8 2.5 -
99 Captain Chorus - 67 89 -22 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