Official NHA Assessment

Race 1: Hollywoodbets GREYVILLE WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

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Line Horse
Vaans Spirit
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
3 / 7
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    Flying Fate          3    60.0    1    0.00     3.0   -     77           6     +6
2    Siyabambelela        4    60.0    2    1.00     3.5   68    76           76    +8
3    Peace Rose           2    60.0    3    2.00     2.0   -     79           79    +79
4    Vaans Spirit         3    58.5    4    4.50     3.0   74    74           74    +0
5    AMC Roy's Fantasy    2    57.0    5    7.70     2.0   -     73           73    +73
6    Roy's Blossom        4    56.0    6    10.50    3.5   54    68           68    +14
7    Bailey Rose          3    60.0    7    23.00    3.0   -     77           77    +77
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Flying Fate - 82 6 +76 3.0 -
2 Siyabambelela 68 73 76 -3 3.5 -
3 Peace Rose - 77 79 -2 2.0 -
4 Vaans Spirit Line 74 72 74 -2 3.0
5 AMC Roy's Fantasy - - 73 - 2.0 -
6 Roy's Blossom 54 54 68 -14 3.5 -
7 Bailey Rose - 34 77 -43 3.0 -
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