Official NHA Assessment

Race 6: RACEHORSE OWNERS ASSOCIATION MR 68 HANDICAP (Open)

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Line Horse
Fast Draw
Reference for assessment
Exact Matches
2 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
5 / 12
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    Coffee Break         3    58.5    1    0.00     2.5   71    56           71    +0
2    Ideal View           6    57.0    2    0.50     0.0   68    63           63    -5
3    Fast Draw            5    57.5    3    1.00     0.0   63    63           63    +0
4    Masterful            6    60.5    4    1.05     0.0   69    69           69    +0
5    Dirty Martini        4    55.5    5    1.30     1.5   59    55           55    -4
6    Uncomplicated        3    59.5    6    1.55     2.5   73    61           63    -10
7    Born A Star          3    60.0    7    3.05     2.5   74    61           64    -10
8    Emperors Decree      4    61.0    8    3.80     1.5   70    64           64    -6
9    Amberglo Star        5    50.5    9    3.90     0.0   50    46           46    -4
10   Narcos               3    55.0    10   8.40     2.5   64    49           54    -10
11   The Ghan             4    56.5    11   8.45     1.5   66    54           56    -10
12   Grey Princess        6    60.0    12   10.70    0.0   68    64           64    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Coffee Break 71 65 71 -6 2.5 -
2 Ideal View 68 90 63 +27 0.0 -
3 Fast Draw Line 63 63 63 ✓ Match 0.0
4 Masterful 69 65 69 -4 0.0 -
5 Dirty Martini 59 50 55 -5 1.5 -
6 Uncomplicated 73 65 63 +2 2.5 -
7 Born A Star 74 64 64 ✓ Match 2.5 -
8 Emperors Decree 70 66 64 +2 1.5 -
9 Amberglo Star 50 50 46 +4 0.0 -
10 Narcos 64 86 54 +32 2.5 -
11 The Ghan 66 62 56 +6 1.5 -
12 Grey Princess 68 56 64 -8 0.0 -
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