Official NHA Assessment

Race 7: 4RACING GRADUATION PLATE (For 1 & 2 Time Winners & Maidens)

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Line Horse
Royal Force
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
5 / 8
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    Kamensky             3    57.0    1    0.00     3.0   93    92           78    -15
2    Aristotle            3    60.0    2    0.30     3.0   113   103          103   -10
3    Too Late My Mate     3    54.5    3    4.40     3.0   100   87           90    -10
4    Royal Force          3    60.0    4    5.40     3.0   98    98           98    +0
5    Skittles Skies       3    56.5    5    10.00    3.0   86    91           91    +5
6    One More Star        3    57.0    6    12.75    3.0   88    92           92    +4
7    Storm Brasco         4    59.5    7    99.99    1.5   96    100          100   +4
99   Shampimpi            4    57.0    99   0.00     1.5   -     95           95    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kamensky 93 105 78 +27 3.0 -
2 Aristotle 113 106 103 +3 3.0 -
3 Too Late My Mate 100 81 90 -9 3.0 -
4 Royal Force Line 98 104 98 +6 3.0
5 Skittles Skies 86 96 91 +5 3.0 -
6 One More Star 88 87 92 -5 3.0 -
7 Storm Brasco 96 93 100 -7 1.5 -
99 Shampimpi - 70 95 -25 1.5 -
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