Official NHA Assessment

Race 5: RACEHORSE OWNERS ASSOCIATION MR 66 HANDICAP (Open)

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Line Horse
Go Dream Machine
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
5 / 8
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    Monsieur Chevelle    3    58.0    1    0.00     8.0   64    61           64    +0
2    Apache Fighter       4    56.0    2    0.20     4.5   60    64           64    +4
3    Liverpool Legend     4    59.5    3    2.45     4.5   65    75           75    +10
4    Go Dream Machine     3    56.5    4    2.95     8.0   61    61           61    +0
5    Cape Bouquet         3    59.0    5    4.70     8.0   66    64           64    -2
6    Twice In Camden      3    57.0    6    8.95     8.0   62    59           59    -3
7    Fantastic Impact (A  4    53.0    7    99.99    4.5   52    58           58    +6
99   Flag Bearer          3    56.5    99   0.00     8.0   -     58           58    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Monsieur Chevelle 64 63 64 -1 8.0 -
2 Apache Fighter 60 81 64 +17 4.5 -
3 Liverpool Legend 65 59 75 -16 4.5 -
4 Go Dream Machine Line 61 52 61 -9 8.0
5 Cape Bouquet 66 62 64 -2 8.0 -
6 Twice In Camden 62 46 59 -13 8.0 -
7 Fantastic Impact (AUS) 52 47 58 -11 4.5 -
99 Flag Bearer - 60 58 +2 8.0 -
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