Official NHA Assessment

Race 1: WELCOME TO ALLIED STEELRODE CHARITY MILE DAY MAIDEN PLATE (For all Maidens)

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Line Horse
Witch Hazel
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
0 / 12
Within 2 points
Significant Diffs
12 / 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    Grand Empire         3    59.0    1    0.00     7.5   -     -            -     +0
2    Tintin               3    60.0    2    2.00     7.5   -     2            2     +2
3    Witch Hazel          3    59.0    3    2.20     7.5   -     -            -     +0
4    Splittheeights       3    59.0    4    3.20     7.5   -     -            -     +0
5    Masterofthebaroque   3    59.0    5    5.20     7.5   -     -            -     +0
6    Copper Cliff         2    60.0    6    10.45    5.0   67    7            57    -10
7    One Of Those Days    3    59.0    7    11.95    7.5   -     -            -     +0
8    Shoreybomba          3    59.0    8    12.15    7.5   -     -            -     +0
9    Major Arcana         4    60.0    9    12.65    9.0   -     -1           -     +0
10   Tiger's Captain      2    59.0    10   18.15    5.0   -     5            5     +5
11   Platinum Hill        3    59.0    11   22.75    7.5   -     -            -     +0
12   Gunboat              3    59.0    12   31.50    7.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Grand Empire - 111 - +111 7.5 -
2 Tintin - 88 2 +86 7.5 -
3 Witch Hazel Line - 81 - +81 7.5
4 Splittheeights - 109 - +109 7.5 -
5 Masterofthebaroque - 72 - +72 7.5 -
6 Copper Cliff 67 75 57 +18 5.0 -
7 One Of Those Days - 81 - +81 7.5 -
8 Shoreybomba - 77 - +77 7.5 -
9 Major Arcana - 74 - +74 9.0 -
10 Tiger's Captain - 70 5 +65 5.0 -
11 Platinum Hill - 57 - +57 7.5 -
12 Gunboat - 74 - +74 7.5 -
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