Official NHA Assessment

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

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Line Horse
Twice The Storm
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
0 / 12
Within 2 points
Significant Diffs
7 / 12
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    Twice The Storm      2    58.0    1    0.00     7.0   79    79           79    +0
2    Northern Tune        4    60.0    2    2.75     12.0  54    73           73    +19
3    Houston              3    58.0    3    3.00     10.5  -     72           72    +72
4    What Say You         2    56.5    4    5.00     7.0   -     76           76    +76
5    Burgess              2    58.0    5    6.75     7.0   78    79           79    +1
6    Alabaster            3    60.0    6    7.00     10.5  62    76           76    +14
7    Prosper's Gift       2    58.0    7    11.00    7.0   61    79           79    +18
8    Spring Will Come     3    56.0    8    12.75    10.5  57    68           68    +11
9    Kite Surfer          2    58.0    9    12.80    7.0   74    79           79    +5
10   Volte Face           3    56.5    10   12.90    10.5  -     69           69    +69
11   Captain Freedom      3    60.0    11   13.00    10.5  59    76           76    +17
99   Wind Water           3    58.0    99   0.00     10.5  -     72           72    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Twice The Storm Line 79 73 79 -6 7.0
2 Northern Tune 54 62 73 -11 12.0 -
3 Houston - 69 72 -3 10.5 -
4 What Say You - 72 76 -4 7.0 -
5 Burgess 78 76 79 -3 7.0 -
6 Alabaster 62 53 76 -23 10.5 -
7 Prosper's Gift 61 64 79 -15 7.0 -
8 Spring Will Come 57 72 68 +4 10.5 -
9 Kite Surfer 74 57 79 -22 7.0 -
10 Volte Face - 66 69 -3 10.5 -
11 Captain Freedom 59 54 76 -22 10.5 -
99 Wind Water - 89 72 +17 10.5 -
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