Official NHA Assessment

Race 5: PinkDrive MAIDEN PLATE (For all Maidens)

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Line Horse
La Dreamer
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
6 / 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    Viceroy              4    60.0    1    0.00     2.0   54    69           60    +6
2    Sexy Shiraz          3    56.5    2    5.10     5.0   58    56           56    -2
3    La Dreamer           3    56.5    3    5.60     5.0   56    56           56    +0
4    Colour Master        3    60.0    4    7.00     5.0   64    63           63    -1
5    Coral Copy           6    60.0    5    7.10     0.0   54    73           73    +19
6    Luck Of The Iris     4    56.5    6    8.80     2.0   52    62           62    +10
7    Triton               3    60.0    7    12.50    5.0   67    63           63    -4
8    Dunstealmythunda     3    60.0    8    28.00    5.0   54    63           63    +9
99   Madiba's Cuppa       3    60.0    99   0.00     5.0   -     63           63    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Viceroy 54 55 60 -5 2.0 -
2 Sexy Shiraz 58 57 56 +1 5.0 -
3 La Dreamer Line 56 48 56 -8 5.0
4 Colour Master 64 52 63 -11 5.0 -
5 Coral Copy 54 54 73 -19 0.0 -
6 Luck Of The Iris 52 47 62 -15 2.0 -
7 Triton 67 52 63 -11 5.0 -
8 Dunstealmythunda 54 49 63 -14 5.0 -
99 Madiba's Cuppa - 63 63 ✓ Match 5.0 -
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