Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY RACING MAIDEN HANDICAP (For Maidens with 3 or more runs)

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Line Horse
Captain Morne
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 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    Granddaddy Purple    3    56.5    1    0.00     7.5   54    54           54    +0
2    Kind Of Blue         2    57.5    2    0.50     5.0   66    61           61    -5
3    Captain Morne        3    59.0    3    1.75     7.5   59    59           59    +0
4    Magenta              4    53.5    4    1.85     9.0   48    45           45    -3
5    Siberian Fox         2    56.0    5    1.95     5.0   63    58           58    -5
6    Goom Goom            3    58.5    6    2.05     7.5   58    58           58    +0
7    Miss United States   3    53.5    7    4.30     7.5   48    48           48    +0
8    Hamlet               4    57.5    8    5.55     9.0   56    53           53    -3
9    Wonder Woman         6    53.5    9    6.30     0.0   48    63           63    +15
10   Deep Dive            3    52.0    10   13.55    7.5   29    45           45    +16
11   Herewegojo           4    52.0    11   14.30    9.0   42    42           42    +0
99   Uncle George         3    60.0    99   0.00     7.5   -     61           61    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Granddaddy Purple 54 50 54 -4 7.5 -
2 Kind Of Blue 66 58 61 -3 5.0 -
3 Captain Morne Line 59 53 59 -6 7.5
4 Magenta 48 59 45 +14 9.0 -
5 Siberian Fox 63 62 58 +4 5.0 -
6 Goom Goom 58 59 58 +1 7.5 -
7 Miss United States 48 52 48 +4 7.5 -
8 Hamlet 56 50 53 -3 9.0 -
9 Wonder Woman 48 43 63 -20 0.0 -
10 Deep Dive 29 39 45 -6 7.5 -
11 Herewegojo 42 35 42 -7 9.0 -
99 Uncle George - 54 61 -7 7.5 -
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