Official NHA Assessment

Race 2: THE APPACHE MAIDEN PLATE (For all Maidens)

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Line Horse
Rafiki
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
6 / 7
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    Rafiki               2    60.0    1    0.00     0.0   69    69           69    +0
2    Doin' Time           5    60.0    2    1.70     0.0   62    72           72    +10
3    Cup Of Magic         3    60.0    3    3.30     3.0   58    64           64    +6
4    Uncle Lucky          2    60.0    4    6.50     0.0   70    69           69    -1
5    Wildstyle            2    60.0    5    8.20     0.0   64    69           69    +5
6    Cash Slip            2    60.0    6    11.80    0.0   69    69           69    +0
99   Zabadak              2    58.5    99   0.00     0.0   -     66           66    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rafiki Line 69 67 69 -2 0.0
2 Doin' Time 62 54 72 -18 0.0 -
3 Cup Of Magic 58 58 64 -6 3.0 -
4 Uncle Lucky 70 61 69 -8 0.0 -
5 Wildstyle 64 62 69 -7 0.0 -
6 Cash Slip 69 58 69 -11 0.0 -
99 Zabadak - 52 66 -14 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