Official NHA Assessment

Race 6: CELEBRATING CAPE RACING CHAIRMAN GREG BORTZ'S BIRTHDAY CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 80)

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Line Horse
Plum Pudding
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 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    Heliotrope           3    55.0    1    0.00     9.0   72    67           67    -5
2    Plum Pudding         3    60.5    2    0.40     9.0   83    83           83    +0
3    Lady Springfield     3    53.0    3    0.70     9.0   84    68           74    -10
4    Lickety Split        2    57.5    4    1.45     0.0   77    93           93    +16
5    Two A Penny          2    62.0    5    2.70     0.0   86    101          101   +15
6    Lucky Miss           3    63.5    6    3.20     9.0   87    86           86    -1
7    Enchanting Choice    4    60.0    7    3.30     5.0   82    86           86    +4
8    Saint Brigid         3    55.5    8    3.40     9.0   73    69           69    -4
99   Princess Of Bayeux   2    57.5    99   0.00     0.0   -     90           90    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Heliotrope 72 67 67 ✓ Match 9.0 -
2 Plum Pudding Line 83 90 83 +7 9.0
3 Lady Springfield 84 81 74 +7 9.0 -
4 Lickety Split 77 84 93 -9 0.0 -
5 Two A Penny 86 85 101 -16 0.0 -
6 Lucky Miss 87 82 86 -4 9.0 -
7 Enchanting Choice 82 99 86 +13 5.0 -
8 Saint Brigid 73 80 69 +11 9.0 -
99 Princess Of Bayeux - 75 90 -15 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