Official NHA Assessment

Race 1: #THISISRACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (For all Maidens)

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Line Horse
Full Go
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
8 / 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    Miss Soho            2    55.0    1    0.00     5.5   75    42           42    -33
2    Mandalay             3    57.5    2    0.10     8.5   60    41           50    -10
3    Magic Dancer         3    60.0    3    2.30     8.5   59    46           49    -10
4    Full Go              6    60.0    4    3.70     0.0   63    63           63    +0
5    Godfather            2    59.0    5    4.75     5.5   58    50           50    -8
6    Tincture Time        3    59.0    6    6.00     8.5   -     44           44    +44
7    Warbonnet Creek (IR  4    60.0    7    6.25     10.0  -     43           43    +43
8    Mon Choisy           3    59.0    8    8.00     8.5   -     44           44    +44
9    Harcourt             2    59.0    9    8.75     5.5   55    50           50    -5
10   Wolfram              3    59.0    10   10.25    8.5   -     44           44    +44
99   Pompom Queen         3    56.5    99   0.00     8.5   -     39           39    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Miss Soho 75 73 42 +31 5.5 -
2 Mandalay 60 53 50 +3 8.5 -
3 Magic Dancer 59 61 49 +12 8.5 -
4 Full Go Line 63 59 63 -4 0.0
5 Godfather 58 57 50 +7 5.5 -
6 Tincture Time - 53 44 +9 8.5 -
7 Warbonnet Creek (IRE) - 56 43 +13 10.0 -
8 Mon Choisy - - 44 -44 8.5 -
9 Harcourt 55 52 50 +2 5.5 -
10 Wolfram - 59 44 +15 8.5 -
99 Pompom Queen - - 39 -39 8.5 -
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