Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY OPEN MAIDEN (For all Maidens)

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Line Horse
Cliffie Clavin
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
5 / 10
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    Bandmaster           3    58.0    1    0.00     8.0   63    61           61    -2
2    Salagadoola          2    54.0    2    1.50     0.0   68    72           72    +4
3    Nuclear Power        2    52.0    3    2.00     0.0   60    68           68    +8
4    Cliffie Clavin       3    56.5    4    2.05     8.0   61    61           61    +0
5    Am Still Winning     3    55.0    5    3.80     8.0   50    56           56    +6
6    Pilgrim              2    50.5    6    4.80     0.0   60    62           62    +2
7    Zumsee               2    58.0    7    6.05     0.0   -     77           77    +77
8    Dream Team           2    54.0    8    7.55     0.0   70    69           69    -1
99   Lady Penny           2    50.0    99   2.30     0.0   70    63           70    +0
99   Jet Querari          3    60.0    99   0.00     8.0   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bandmaster 63 62 61 +1 8.0 -
2 Salagadoola 68 66 72 -6 0.0 -
3 Nuclear Power 60 60 68 -8 0.0 -
4 Cliffie Clavin Line 61 57 61 -4 8.0
5 Am Still Winning 50 51 56 -5 8.0 -
6 Pilgrim 60 62 62 ✓ Match 0.0 -
7 Zumsee - 66 77 -11 0.0 -
8 Dream Team 70 56 69 -13 0.0 -
99 Lady Penny 70 63 70 -7 0.0 -
99 Jet Querari - 68 65 +3 8.0 -
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