Official NHA Assessment

Race 9: Hollywoodbets BRIGHT FUTURE D STAKES (For All Horses)

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Line Horse
Purple Powahouse
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
3 / 12
Within 2 points
Significant Diffs
7 / 12
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Intrepid             3    63.5    1    0.00     4.5   70    59           59    -11
2    Jane's Vision        2    55.0    2    0.30     3.0   63    45           53    -10
3    Purple Powahouse     8    57.0    3    0.40     0.0   55    55           55    +0
4    Cappellino           3    60.0    4    0.90     4.5   61    52           52    -9
4    Prankster            2    60.5    4    0.90     3.0   69    56           59    -10
6    Trafalgar Square     6    63.0    6    1.90     0.0   69    67           67    -2
7    Kinshin Sha          4    61.5    7    2.30     5.0   65    54           55    -10
8    Gorgeous Bomb        3    56.0    8    2.70     4.5   62    44           52    -10
9    Austrian Beauty      3    56.5    9    3.20     4.5   65    45           55    -10
10   Grand Force          3    54.5    10   4.00     4.5   60    41           50    -10
11   Night Tiger          5    62.0    11   6.60     0.0   67    65           65    -2
99   Arverni Princess     2    58.0    99   0.00     3.0   -     51           51    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Intrepid 70 73 59 +14 4.5 -
2 Jane's Vision 63 65 53 +12 3.0 -
3 Purple Powahouse Line 55 55 55 ✓ Match 0.0
4 Cappellino 61 61 52 +9 4.5 -
4 Prankster 69 69 59 +10 3.0 -
6 Trafalgar Square 69 69 67 +2 0.0 -
7 Kinshin Sha 65 62 55 +7 5.0 -
8 Gorgeous Bomb 62 62 52 +10 4.5 -
9 Austrian Beauty 65 60 55 +5 4.5 -
10 Grand Force 60 54 50 +4 4.5 -
11 Night Tiger 67 67 65 +2 0.0 -
99 Arverni Princess - 67 51 +16 3.0 -
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