Official NHA Assessment

Race 7: TOPBET SPRING SPREE STAKES (Listed) (Open)

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Line Horse
Val d'Orcia
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
9 / 11
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    Team Gold            3    54.0    1    0.00     9.5   98    98           98    +0
2    Sheela               3    58.5    2    0.30     9.5   107   107          107   +0
3    Val d'Orcia          3    60.5    3    2.00     9.5   111   111          111   +0
4    Vaseem               5    57.5    4    5.00     0.0   105   124          124   +19
5    Supreme Quest        3    59.0    5    5.30     9.5   108   108          108   +0
6    Mind Reader          5    55.5    6    6.00     0.0   101   120          120   +19
7    Prince Of Fire       3    62.0    7    6.80     9.5   114   114          114   +0
8    Ultra Magnus         6    61.0    8    8.30     0.0   112   131          131   +19
9    Noble Striker        3    54.5    9    12.90    9.5   99    99           99    +0
99   Twice As Splendid    3    52.0    99   0.00     9.5   -     94           94    +0
99   Rollwiththepunches   6    57.0    99   0.00     0.0   -     123          123   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Team Gold 98 97 98 -1 9.5 -
2 Sheela 107 121 107 +14 9.5 -
3 Val d'Orcia Line 111 105 111 -6 9.5
4 Vaseem 105 94 124 -30 0.0 -
5 Supreme Quest 108 92 108 -16 9.5 -
6 Mind Reader 101 100 120 -20 0.0 -
7 Prince Of Fire 114 104 114 -10 9.5 -
8 Ultra Magnus 112 98 131 -33 0.0 -
9 Noble Striker 99 98 99 -1 9.5 -
99 Twice As Splendid - 81 94 -13 9.5 -
99 Rollwiththepunches - 90 123 -33 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