Official NHA Assessment

Race 1: POWER KING (2015) MAIDEN JUVENILE PLATE (For 2 year-olds)

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Line Horse
None identified
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
9 / 10
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    Purpleninjaturtle    4    60.0    1    0.00     0.5   -     -            -     +0
2    Josephine's Pride    2    60.0    2    0.05     0.0   -     -            -     +0
3    Warhawk Bomber       2    58.5    3    0.95     0.0   -     -            -     +0
4    Bedtime Story        2    60.0    4    1.05     0.0   -     -            -     +0
5    Professor Lupin      4    60.0    5    1.35     0.5   -     -            -     +0
6    Raf's Rocket         2    60.0    6    4.65     0.0   -     -            -     +0
7    Givethatmanabells    4    60.0    7    7.55     0.5   -     -            -     +0
8    Valyrian Sword       2    60.0    8    12.65    0.0   -     -            -     +0
9    The Boss             2    60.0    9    21.55    0.0   -     -            -     +0
10   Equity Share         2    60.0    10   24.55    0.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Purpleninjaturtle - 78 - +78 0.5 -
2 Josephine's Pride - 86 - +86 0.0 -
3 Warhawk Bomber - 80 - +80 0.0 -
4 Bedtime Story - 83 - +83 0.0 -
5 Professor Lupin - 67 - +67 0.5 -
6 Raf's Rocket - 77 - +77 0.0 -
7 Givethatmanabells - 70 - +70 0.5 -
8 Valyrian Sword - 50 - +50 0.0 -
9 The Boss - - - ✓ Match 0.0 -
10 Equity Share - 48 - +48 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