Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Daring Act
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
8 / 8
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    Chocolate Bomb       2    60.0    1    0.00     7.0   -     92           6     +6
2    Daring Act           4    60.0    2    2.00     12.0  82    82           82    +0
3    Presley              4    60.0    3    3.25     12.0  -     82           82    +82
4    Gotcha Buzz          2    57.5    4    5.50     7.0   72    87           87    +15
5    Lt Alexander         2    60.0    5    5.60     7.0   79    92           92    +13
6    Scarlet Red          3    59.5    6    7.75     10.5  -     84           84    +84
7    Hat Hot Hat          4    60.0    7    13.00    12.0  -     82           82    +82
99   Lovegrass            4    57.5    99   0.00     12.0  -     77           77    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Chocolate Bomb - 82 6 +76 7.0 -
2 Daring Act Line 82 60 82 -22 12.0
3 Presley - 90 82 +8 12.0 -
4 Gotcha Buzz 72 61 87 -26 7.0 -
5 Lt Alexander 79 72 92 -20 7.0 -
6 Scarlet Red - 64 84 -20 10.5 -
7 Hat Hot Hat - 66 82 -16 12.0 -
99 Lovegrass - 96 77 +19 12.0 -
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