Official NHA Assessment

Race 6: TAB IGUGU STAKES (Grade 2) (For Fillies and Mares at Weight for Age + Penalties)

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Line Horse
Olivia's Way
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
4 / 8
Within 2 points
Significant Diffs
2 / 8
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    Callmegetrix         4    60.0    1    0.00     1.5   113   112          112   -1
2    Minogue              4    59.0    2    1.00     1.5   114   116          116   +2
3    Olivia's Way         3    60.0    3    1.10     3.5   114   114          114   +0
4    Doitwithdiamonds     4    59.0    4    2.90     1.5   99    113          113   +14
5    Soldier's Eye        4    59.0    5    5.40     1.5   94    110          110   +16
6    Charge It            2    55.5    6    7.00     0.0   113   106          106   -7
99   Daisy Jones          2    55.5    99   0.00     0.0   -     106          106   +0
99   Indian Ocean         3    59.0    99   0.00     3.5   -     106          106   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Callmegetrix 113 115 112 +3 1.5 -
2 Minogue 114 114 116 -2 1.5 -
3 Olivia's Way Line 114 114 114 ✓ Match 3.5
4 Doitwithdiamonds 99 99 113 -14 1.5 -
5 Soldier's Eye 94 94 110 -16 1.5 -
6 Charge It 113 110 106 +4 0.0 -
99 Daisy Jones - 108 106 +2 0.0 -
99 Indian Ocean - 105 106 -1 3.5 -
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