Official NHA Assessment

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

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Line Horse
Full Go
Reference for assessment
Exact Matches
0 / 15
Calculated = Official
Close Matches
3 / 15
Within 2 points
Significant Diffs
11 / 15
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    Boisterous           2    57.0    1    0.00     0.5   -     56           6     +6
2    Lovers Lane          2    57.0    2    1.50     0.5   -     56           56    +56
3    Full Go              6    60.0    3    6.00     0.0   63    63           63    +0
4    Pragmatist           5    57.0    4    6.75     0.0   -     57           57    +57
5    Burgess              2    57.0    5    7.25     0.5   -     56           56    +56
6    Magic Prince         2    57.0    6    7.50     0.5   -     56           56    +56
7    Captain Freedom      3    60.0    7    9.00     1.5   57    60           60    +3
8    Stella Brillante     2    57.0    8    9.10     0.5   -     56           56    +56
9    Promontory           2    57.0    9    13.25    0.5   -     56           56    +56
10   Mr Bodacious         2    57.0    10   15.50    0.5   -     56           56    +56
11   Duke Of Fire         4    58.5    11   16.00    2.0   44    56           56    +12
12   Black Lightning      2    57.0    12   17.00    0.5   -     56           56    +56
13   Cash Slip            2    57.0    13   17.50    0.5   -     56           56    +56
14   Power Mad            3    58.5    14   20.50    1.5   51    57           57    +6
99   New Mexico           2    57.0    99   0.00     0.5   -     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 Boisterous - 87 6 +81 0.5 -
2 Lovers Lane - 58 56 +2 0.5 -
3 Full Go Line 63 59 63 -4 0.0
4 Pragmatist - 81 57 +24 0.0 -
5 Burgess - 76 56 +20 0.5 -
6 Magic Prince - 66 56 +10 0.5 -
7 Captain Freedom 57 54 60 -6 1.5 -
8 Stella Brillante - 57 56 +1 0.5 -
9 Promontory - 65 56 +9 0.5 -
10 Mr Bodacious - 65 56 +9 0.5 -
11 Duke Of Fire 44 38 56 -18 2.0 -
12 Black Lightning - 64 56 +8 0.5 -
13 Cash Slip - 58 56 +2 0.5 -
14 Power Mad 51 42 57 -15 1.5 -
99 New Mexico - 83 56 +27 0.5 -
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