Official NHA Assessment

Race 7: FOLLOW GOLD CIRCLE ON FACEBOOK MR 73 HANDICAP (Open)

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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
6 / 12
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    Brazil Nut           4    58.0    1    0.00     6.0   69    57           69    +0
2    Purple Powahouse     8    60.0    2    1.10     0.0   73    73           73    +0
3    Bernie's Dream       4    60.5    3    2.40     6.0   77    62           67    -10
4    Captain Who          4    59.5    4    2.70     6.0   77    60           67    -10
5    Gimme A Rainbow      4    58.5    5    2.75     6.0   70    58           60    -10
6    High Velocity        4    53.5    6    3.25     6.0   60    48           50    -10
6    Justaguything        5    59.0    6    3.25     0.0   71    71           71    +0
8    Chief Executive      3    55.5    8    4.35     5.0   71    54           61    -10
9    Tom Bombadil         5    56.5    9    7.35     0.0   66    66           66    +0
10   Woodstock Festival   6    59.5    10   7.40     0.0   72    72           72    +0
11   Leslies Pathtofame   7    57.5    11   10.40    0.0   68    68           68    +0
99   Camora               4    57.0    99   0.00     6.0   -     55           55    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Brazil Nut 69 72 69 +3 6.0 -
2 Purple Powahouse Line 73 55 73 -18 0.0
3 Bernie's Dream 77 69 67 +2 6.0 -
4 Captain Who 77 65 67 -2 6.0 -
5 Gimme A Rainbow 70 74 60 +14 6.0 -
6 High Velocity 60 50 50 ✓ Match 6.0 -
6 Justaguything 71 87 71 +16 0.0 -
8 Chief Executive 71 66 61 +5 5.0 -
9 Tom Bombadil 66 56 66 -10 0.0 -
10 Woodstock Festival 72 57 72 -15 0.0 -
11 Leslies Pathtofame 68 63 68 -5 0.0 -
99 Camora - 81 55 +26 6.0 -
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