Official NHA Assessment

Race 2: TAKING THE REINS MAIDEN PLATE (For all Maidens)

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Line Horse
Aristotle
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
10 / 10
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    Aristotle            3    59.0    1    0.00     7.0   91    91           91    +0
2    Green Garnet         4    60.0    2    2.50     4.5   77    100          100   +23
3    Honor Of Kings       3    59.0    3    5.25     7.0   -     91           91    +91
4    Elusive Black        3    59.0    4    6.25     7.0   -     91           91    +91
5    Jet A One            2    59.0    5    7.50     0.0   76    105          105   +29
6    Afrique              3    59.0    6    9.00     7.0   -     91           91    +91
7    Count William        3    59.0    7    9.30     7.0   -     91           91    +91
8    Thomas Jenkins       3    59.0    8    10.55    7.0   -     91           91    +91
9    Thunder Downunder    3    59.0    9    12.55    7.0   -     91           91    +91
10   Haarlem              3    59.0    10   14.80    7.0   -     91           91    +91
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Aristotle Line 91 106 91 +15 7.0
2 Green Garnet 77 81 100 -19 4.5 -
3 Honor Of Kings - 76 91 -15 7.0 -
4 Elusive Black - 68 91 -23 7.0 -
5 Jet A One 76 69 105 -36 0.0 -
6 Afrique - 83 91 -8 7.0 -
7 Count William - 71 91 -20 7.0 -
8 Thomas Jenkins - 76 91 -15 7.0 -
9 Thunder Downunder - 72 91 -19 7.0 -
10 Haarlem - 73 91 -18 7.0 -
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