Official NHA Assessment

Race 7: TAB THE PREMIER'S CHAMPIONS CHALLENGE (Grade 1) (For all horses at Weight for Age)

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Line Horse
Flying Carpet
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
4 / 13
Within 2 points
Significant Diffs
7 / 13
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    Astrix               5    60.0    1    0.00     0.0   112   116          116   +4
2    Sparkling Water      4    57.5    2    0.10     1.5   115   108          108   -7
3    Puerto Manzano (ARG  4    60.0    3    2.70     1.5   120   117          117   -3
4    Flying Carpet        4    60.0    4    3.00     1.5   116   116          116   +0
5    Kommetdieding        4    60.0    5    4.25     1.5   129   115          119   -10
6    Mk's Pride           4    60.0    6    4.30     1.5   122   114          114   -8
7    Shangani             4    60.0    7    5.10     1.5   108   113          113   +5
8    Zeus                 3    56.5    8    7.10     3.5   108   102          102   -6
9    Johnny Hero          5    60.0    9    7.50     0.0   110   116          116   +6
10   Zillzaal             6    60.0    10   12.00    0.0   117   116          116   -1
11   Second Base          4    60.0    11   13.00    1.5   118   113          113   -5
12   Shango               5    60.0    12   14.75    0.0   109   116          116   +7
13   Savannah Storm       5    60.0    13   19.25    0.0   97    116          116   +19
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Astrix 112 118 116 +2 0.0 -
2 Sparkling Water 115 122 108 +14 1.5 -
3 Puerto Manzano (ARG) 120 119 117 +2 1.5 -
4 Flying Carpet Line 116 116 116 ✓ Match 1.5
5 Kommetdieding 129 129 119 +10 1.5 -
6 Mk's Pride 122 116 114 +2 1.5 -
7 Shangani 108 118 113 +5 1.5 -
8 Zeus 108 117 102 +15 3.5 -
9 Johnny Hero 110 87 116 -29 0.0 -
10 Zillzaal 117 112 116 -4 0.0 -
11 Second Base 118 99 113 -14 1.5 -
12 Shango 109 105 116 -11 0.0 -
13 Savannah Storm 97 102 116 -14 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