Official NHA Assessment

Race 3: MARINARESCO (2017) MAIDEN PLATE (For all Maidens)

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Line Horse
Cotton Ron
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
8 / 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    Shot Of Courage      3    56.0    1    0.00     2.0   59    48           48    -11
2    Stars In Heaven      2    57.0    2    0.90     1.0   -     52           52    +52
3    Victor Rail          5    60.0    3    1.60     0.0   72    60           62    -10
4    Cotton Ron           6    60.0    4    3.30     0.0   60    60           60    +0
5    Benni In The Area    3    60.0    5    4.00     2.0   79    56           69    -10
6    Mighty Rain          3    60.0    6    5.70     2.0   -     56           56    +56
7    Goosebumps           2    57.0    7    7.00     1.0   -     52           52    +52
8    Iron Monger          2    60.0    8    9.40     1.0   -     58           58    +58
9    Frozen Kingdom       3    60.0    9    12.90    2.0   50    56           56    +6
99   Activator            3    60.0    99   0.00     2.0   -     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 Shot Of Courage 59 73 48 +25 2.0 -
2 Stars In Heaven - 87 52 +35 1.0 -
3 Victor Rail 72 61 62 -1 0.0 -
4 Cotton Ron Line 60 59 60 -1 0.0
5 Benni In The Area 79 78 69 +9 2.0 -
6 Mighty Rain - 46 56 -10 2.0 -
7 Goosebumps - 75 52 +23 1.0 -
8 Iron Monger - 64 58 +6 1.0 -
9 Frozen Kingdom 50 46 56 -10 2.0 -
99 Activator - 66 56 +10 2.0 -
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