Official NHA Assessment

Race 3: FOLLOW @WORLDPOOL on X UMKHOMAZI STAKES (Grade 2) (For 2 year olds)

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Line Horse
Zalatoris
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
5 / 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    Zalatoris            2    60.0    1    0.00     0.5   104   104          104   +0
2    Shadowfax            2    60.0    2    0.30     0.5   93    104          104   +11
3    Titan Of The Turf    2    60.0    3    0.40     0.5   96    104          104   +8
4    Rachel Wall          2    57.5    4    0.50     0.5   92    99           99    +7
5    Sylvan Warrior       2    60.0    5    0.90     0.5   91    104          104   +13
6    Aristocratic         2    60.0    6    1.80     0.5   108   104          104   -4
7    Mighty Zambezi       2    60.0    7    2.20     0.5   86    104          104   +18
8    City Of Love         2    60.0    8    5.10     0.5   87    104          104   +17
9    Vanakkam             2    56.5    9    6.40     0.5   83    97           97    +14
10   George's Magic       2    60.0    10   9.30     0.5   87    104          104   +17
11   Dante's Bond         2    59.0    11   13.90    0.5   -     102          102   +102
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Zalatoris Line 104 108 104 +4 0.5
2 Shadowfax 93 102 104 -2 0.5 -
3 Titan Of The Turf 96 102 104 -2 0.5 -
4 Rachel Wall 92 105 99 +6 0.5 -
5 Sylvan Warrior 91 101 104 -3 0.5 -
6 Aristocratic 108 101 104 -3 0.5 -
7 Mighty Zambezi 86 80 104 -24 0.5 -
8 City Of Love 87 85 104 -19 0.5 -
9 Vanakkam 83 93 97 -4 0.5 -
10 George's Magic 87 84 104 -20 0.5 -
11 Dante's Bond - 83 102 -19 0.5 -
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