Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN PLATE (For Maidens. R15 000 Win bonus ROA Members)

Back to Race
Line Horse
King Of Queen
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
5 / 9
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Lt Alexander         2    60.0    1    0.00     0.0   66    68           68    +2
2    King Of Queen        2    60.0    2    1.00     0.0   72    72           72    +0
3    Justcantgetenough    2    60.0    3    1.10     0.0   77    72           72    -5
4    William's Legacy     2    60.0    4    1.85     0.0   70    71           71    +1
5    Outer Dimension      2    57.0    5    3.10     0.0   72    64           64    -8
6    'O Captain           2    60.0    6    9.60     0.0   61    68           68    +7
7    Midnight Advocator   3    60.0    7    9.70     2.5   56    63           63    +7
99   Charge Ahead         2    56.0    99   0.00     0.0   -     60           60    +0
99   Torrone              2    56.0    99   0.00     0.0   -     60           60    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lt Alexander 66 72 68 +4 0.0 -
2 King Of Queen Line 72 65 72 -7 0.0
3 Justcantgetenough 77 57 72 -15 0.0 -
4 William's Legacy 70 66 71 -5 0.0 -
5 Outer Dimension 72 70 64 +6 0.0 -
6 'O Captain 61 52 68 -16 0.0 -
7 Midnight Advocator 56 48 63 -15 2.5 -
99 Charge Ahead - 57 60 -3 0.0 -
99 Torrone - 63 60 +3 0.0 -
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