Official NHA Assessment

Race 3: CHARITY MILE 1 NOVEMBER MAIDEN PLATE (For all Maidens)

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Line Horse
Johnny Drama
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 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    Safe Travel          2    56.0    1    0.00     0.0   -     65           6     +6
2    Johnny Drama         3    60.0    2    3.40     1.0   72    72           72    +0
3    Luwak                2    56.0    3    8.50     0.0   -     65           65    +65
4    Seventh Fleet        3    58.5    4    13.50    1.0   75    68           68    -7
5    Olympian Gold        2    56.0    5    13.90    0.0   -     65           65    +65
6    Red Sea Hills        3    60.0    6    27.00    1.0   40    71           71    +31
7    Lord Kelvin          3    60.0    7    27.50    1.0   -     71           71    +71
8    Zypher King          2    56.0    8    28.60    0.0   -     65           65    +65
99   Frere Jacques        3    60.0    99   0.00     1.0   -     71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Safe Travel - 89 6 +83 0.0 -
2 Johnny Drama Line 72 78 72 +6 1.0
3 Luwak - 85 65 +20 0.0 -
4 Seventh Fleet 75 66 68 -2 1.0 -
5 Olympian Gold - 86 65 +21 0.0 -
6 Red Sea Hills 40 40 71 -31 1.0 -
7 Lord Kelvin - 38 71 -33 1.0 -
8 Zypher King - - 65 -65 0.0 -
99 Frere Jacques - 76 71 +5 1.0 -
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