Official NHA Assessment

Race 4: RACING240 FOR RACING. FOR YOU MAIDEN PLATE (For all Maidens)

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Line Horse
Parker Getrix
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
4 / 9
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    Leeson               3    60.0    1    0.00     2.5   71    53           53    -18
2    Parker Getrix        4    60.0    2    2.25     1.0   59    59           59    +0
3    Big Guy              3    60.0    3    9.50     2.5   -     53           53    +53
4    Real Churchy         3    60.0    4    14.75    2.5   51    53           53    +2
5    Free Wylie           4    60.0    5    16.00    1.0   -     56           56    +56
6    Chariot Master       4    60.0    6    18.75    1.0   60    56           56    -4
7    Dark Horse           3    60.0    7    26.00    2.5   -     53           53    +53
8    Thornton Creek       4    60.0    8    40.00    1.0   35    56           56    +21
99   Dj Junior            3    60.0    99   0.00     2.5   -     53           53    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Leeson 71 72 53 +19 2.5 -
2 Parker Getrix Line 59 56 59 -3 1.0
3 Big Guy - 60 53 +7 2.5 -
4 Real Churchy 51 50 53 -3 2.5 -
5 Free Wylie - 57 56 +1 1.0 -
6 Chariot Master 60 61 56 +5 1.0 -
7 Dark Horse - 53 53 ✓ Match 2.5 -
8 Thornton Creek 35 30 56 -26 1.0 -
99 Dj Junior - 79 53 +26 2.5 -
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