Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY OPEN MAIDEN (For Maiden R15 000 Win Bonus ROA Members)

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Line Horse
Joe Harman
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
4 / 11
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    Military Man         2    58.5    1    0.00     0.0   72    60           60    -12
2    Sunlit From Heaven   3    55.5    2    1.25     7.0   59    45           49    -10
3    Joe Harman           4    56.0    3    1.30     3.5   53    53           53    +0
4    Imhotep              2    56.5    4    2.30     0.0   68    60           60    -8
5    Belle's First Wave   3    53.5    5    3.55     7.0   46    38           38    -8
6    First Master         3    58.0    6    6.80     7.0   59    45           49    -10
7    Sundrop              6    52.0    7    9.55     0.0   48    47           47    -1
8    Secret Summer        2    52.0    8    14.05    0.0   67    47           57    -10
9    He's A Gaul          3    54.5    9    15.80    7.0   64    38           54    -10
10   Wolfram              3    61.0    10   29.30    7.0   65    51           55    -10
99   Fearless Badger      4    54.5    99   0.00     3.5   -     45           45    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Military Man 72 65 60 +5 0.0 -
2 Sunlit From Heaven 59 54 49 +5 7.0 -
3 Joe Harman Line 53 54 53 +1 3.5
4 Imhotep 68 60 60 ✓ Match 0.0 -
5 Belle's First Wave 46 51 38 +13 7.0 -
6 First Master 59 59 49 +10 7.0 -
7 Sundrop 48 48 47 +1 0.0 -
8 Secret Summer 67 52 57 -5 0.0 -
9 He's A Gaul 64 63 54 +9 7.0 -
10 Wolfram 65 59 55 +4 7.0 -
99 Fearless Badger - 58 45 +13 3.5 -
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