Official NHA Assessment

Race 3: LUCKY FISH DIAMOND RISE OPEN MAIDEN (For all Maidens)

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Line Horse
Quiet Place
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
3 / 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    Heavenly Prince      2    56.0    1    0.00     0.0   63    65           65    +2
2    Quiet Place          3    59.5    2    0.30     4.5   70    70           70    +0
3    Gimme The Truth      3    57.5    3    3.80     4.5   65    61           61    -4
4    Conditionally        2    53.0    4    4.00     0.0   65    61           61    -4
5    O'Fellow             2    55.5    5    6.25     0.0   62    64           64    +2
6    Born To Master       3    60.5    6    10.50    4.5   -     65           65    +65
7    Ready For The Road   3    58.5    7    14.25    4.5   68    61           61    -7
99   Double Distilled     3    55.0    99   0.00     4.5   -     54           54    +0
99   I Am Sam             3    60.5    99   0.00     4.5   -     65           65    +0
99   Echo Foxtrot         3    51.5    99   0.00     4.5   -     47           47    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Heavenly Prince 63 67 65 +2 0.0 -
2 Quiet Place Line 70 73 70 +3 4.5
3 Gimme The Truth 65 65 61 +4 4.5 -
4 Conditionally 65 65 61 +4 0.0 -
5 O'Fellow 62 62 64 -2 0.0 -
6 Born To Master - 59 65 -6 4.5 -
7 Ready For The Road 68 68 61 +7 4.5 -
99 Double Distilled - 52 54 -2 4.5 -
99 I Am Sam - 70 65 +5 4.5 -
99 Echo Foxtrot - 57 47 +10 4.5 -
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