Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (3-year-old Fillies) (For Maiden 3-year-old Fillies)

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Line Horse
Phuthi
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
5 / 11
Within 2 points
Significant Diffs
6 / 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    Willow Lady          2    60.0    1    0.00     6.5   62    74           68    +6
2    Red Secret           3    60.0    2    1.70     9.5   -     68           68    +68
3    Phuthi               2    60.0    3    1.80     6.5   74    74           74    +0
4    Mme Huntress         3    60.0    4    2.10     9.5   -     68           68    +68
5    Palace Script        3    60.0    5    4.50     9.5   -     68           68    +68
6    Chariklo             3    58.5    6    5.10     9.5   -     65           65    +65
7    Come Together        3    60.0    7    5.90     9.5   -     68           68    +68
8    Villarrica           3    56.0    8    11.00    9.5   -     60           60    +60
9    Alleyah's Rocket     3    60.0    9    12.70    9.5   -     68           68    +68
99   Erebus               2    60.0    99   0.00     6.5   -     74           74    +0
99   Master'S Rose        3    60.0    99   0.00     9.5   -     68           68    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Willow Lady 62 67 68 -1 6.5 -
2 Red Secret - 59 68 -9 9.5 -
3 Phuthi Line 74 72 74 -2 6.5
4 Mme Huntress - 61 68 -7 9.5 -
5 Palace Script - 77 68 +9 9.5 -
6 Chariklo - 71 65 +6 9.5 -
7 Come Together - 70 68 +2 9.5 -
8 Villarrica - 58 60 -2 9.5 -
9 Alleyah's Rocket - 56 68 -12 9.5 -
99 Erebus - 66 74 -8 6.5 -
99 Master'S Rose - 68 68 ✓ Match 9.5 -
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