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
Lilac Snow
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
7 / 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    Universal Girl (IRE  4    60.0    1    0.00     10.0  -     48           6     +6
2    Lilac Snow           2    60.0    2    0.25     5.5   57    57           57    +0
3    Winter Wedding       2    59.0    3    2.15     5.5   -     55           55    +55
4    Pleiades Star        3    59.0    4    3.85     8.5   -     49           49    +49
5    Matts Rocket         2    59.0    5    4.75     5.5   69    55           59    -10
6    Erik's Girl          2    59.0    6    5.55     5.5   71    55           61    -10
7    Lasting Looks        2    59.5    7    6.65     5.5   73    56           63    -10
8    Global Royalty       2    59.0    8    13.90    5.5   51    55           55    +4
9    Manuriki             2    59.0    9    14.30    5.5   -     55           55    +55
10   Iyoolbhanoyi         2    59.0    10   17.50    5.5   -     55           55    +55
99   Amaze Me             2    59.0    99   0.00     5.5   -     55           55    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Universal Girl (IRE) - 65 6 +59 10.0 -
2 Lilac Snow Line 57 60 57 +3 5.5
3 Winter Wedding - 75 55 +20 5.5 -
4 Pleiades Star - 78 49 +29 8.5 -
5 Matts Rocket 69 57 59 -2 5.5 -
6 Erik's Girl 71 67 61 +6 5.5 -
7 Lasting Looks 73 66 63 +3 5.5 -
8 Global Royalty 51 48 55 -7 5.5 -
9 Manuriki - 52 55 -3 5.5 -
10 Iyoolbhanoyi - 44 55 -11 5.5 -
99 Amaze Me - 64 55 +9 5.5 -
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