Official NHA Assessment

Race 4: CENTENARY SYNDICATE OPEN MAIDEN (For all Maidens)

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Line Horse
Rare Earth
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
5 / 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    Not Wanted           3    59.5    1    0.00     1.5   -     69           6     +6
2    Rare Earth           3    58.0    2    1.00     1.5   70    70           70    +0
3    Tori's Girl          3    51.5    3    2.50     1.5   52    55           55    +3
4    Red State            3    55.0    4    2.90     1.5   65    62           62    -3
5    Fort Impreza         3    55.5    5    3.00     1.5   61    63           63    +2
6    Marine Merchant      3    58.5    6    3.40     1.5   67    68           68    +1
7    Gimme The Best       2    54.0    7    4.65     0.0   54    61           61    +7
8    From The Hip         3    53.0    8    6.15     1.5   56    56           56    +0
9    Lucky Thirteen       4    52.0    9    6.90     0.5   50    56           56    +6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Not Wanted - 73 6 +67 1.5 -
2 Rare Earth Line 70 64 70 -6 1.5
3 Tori's Girl 52 59 55 +4 1.5 -
4 Red State 65 65 62 +3 1.5 -
5 Fort Impreza 61 56 63 -7 1.5 -
6 Marine Merchant 67 66 68 -2 1.5 -
7 Gimme The Best 54 51 61 -10 0.0 -
8 From The Hip 56 56 56 ✓ Match 1.5 -
9 Lucky Thirteen 50 49 56 -7 0.5 -
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