Official NHA Assessment

Race 6: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MR 84 HANDICAP (Open)

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Line Horse
Total Surrender
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
4 / 11
Within 2 points
Significant Diffs
5 / 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    Eiger Sanction       3    57.0    1    0.00     9.0   80    60           80    +0
2    Total Surrender      5    60.0    2    0.15     0.0   84    84           84    +0
3    Moola Man            4    60.0    3    0.20     5.0   86    74           76    -10
4    Celtic Rush          5    56.0    4    1.10     0.0   76    80           80    +4
5    Royal Edition        4    59.5    5    3.60     5.0   85    74           75    -10
6    To The Rescue        4    56.0    6    4.35     5.0   78    66           68    -10
7    Black Lightning      2    52.0    7    4.85     0.0   68    68           68    +0
8    Pocket Watch         2    60.0    8    5.35     0.0   86    84           84    -2
9    Professor Snape      2    57.5    9    6.85     0.0   84    79           79    -5
10   Eiffel Tower         4    58.5    10   10.10    5.0   83    71           73    -10
11   Al Akhtaar           3    57.0    11   11.35    9.0   80    60           70    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Eiger Sanction 80 79 80 -1 9.0 -
2 Total Surrender Line 84 74 84 -10 0.0
3 Moola Man 86 75 76 -1 5.0 -
4 Celtic Rush 76 69 80 -11 0.0 -
5 Royal Edition 85 92 75 +17 5.0 -
6 To The Rescue 78 82 68 +14 5.0 -
7 Black Lightning 68 64 68 -4 0.0 -
8 Pocket Watch 86 83 84 -1 0.0 -
9 Professor Snape 84 68 79 -11 0.0 -
10 Eiffel Tower 83 69 73 -4 5.0 -
11 Al Akhtaar 80 72 70 +2 9.0 -
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