Official NHA Assessment

Race 7: TAB TELEBET 0861 000 822 MR 104 HANDICAP (Open)

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Line Horse
Val d'Orcia
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
6 / 10
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    Sheldon              6    57.5    1    0.00     0.0   99    103          99    +0
2    Cabinet Shuffle      4    57.0    2    1.25     2.5   98    97           97    -1
3    Val d'Orcia          3    59.5    3    3.25     2.0   103   103          103   +0
4    Clarkson             4    52.0    4    3.30     2.5   84    87           87    +3
5    Cleaver Greene       3    59.5    5    3.50     2.0   103   103          103   +0
6    Godswood             4    60.0    6    5.50     2.5   109   103          103   -6
7    Miss Daisy           2    59.0    7    5.75     1.0   104   104          104   +0
8    Vegas Hi Rise        6    53.0    8    7.50     0.0   90    94           94    +4
9    Winter Stories       4    61.5    9    9.25     2.5   107   106          106   -1
10   Herecomestherain     4    50.0    10   15.50    2.5   81    83           83    +2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sheldon 99 106 99 +7 0.0 -
2 Cabinet Shuffle 98 76 97 -21 2.5 -
3 Val d'Orcia Line 103 105 103 +2 2.0
4 Clarkson 84 75 87 -12 2.5 -
5 Cleaver Greene 103 102 103 -1 2.0 -
6 Godswood 109 106 103 +3 2.5 -
7 Miss Daisy 104 108 104 +4 1.0 -
8 Vegas Hi Rise 90 71 94 -23 0.0 -
9 Winter Stories 107 95 106 -11 2.5 -
10 Herecomestherain 81 55 83 -28 2.5 -
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