Official NHA Assessment

Race 1: 4RACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Bilingual
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 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    Blindfire            2    57.0    1    0.00     1.5   -     52           6     +6
2    Empress Wu           3    60.0    2    1.25     2.5   65    56           56    -9
3    Bilingual            4    60.0    3    1.55     0.0   61    61           61    +0
4    Act On Snow          3    60.0    4    5.25     2.5   66    56           56    -10
5    Hurricane Power      2    57.0    5    5.50     1.5   -     52           52    +52
6    Cookie Delight       3    60.0    6    8.75     2.5   -     56           56    +56
7    Sterling Silver      3    60.0    7    11.25    2.5   53    56           56    +3
99   Panning Silver       3    60.0    99   0.00     2.5   -     56           56    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Blindfire - 81 6 +75 1.5 -
2 Empress Wu 65 61 56 +5 2.5 -
3 Bilingual Line 61 60 61 -1 0.0
4 Act On Snow 66 64 56 +8 2.5 -
5 Hurricane Power - 63 52 +11 1.5 -
6 Cookie Delight - - 56 -56 2.5 -
7 Sterling Silver 53 50 56 -6 2.5 -
99 Panning Silver - 68 56 +12 2.5 -
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