Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN JUVENILE PLATE (For 2 yo R100 000 Win BSA Bonus Series)

Back to Race
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
10 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Questor              2    60.0    1    0.00     1.5   -     -            -     +0
2    Arturo               2    60.0    2    6.50     1.5   -     -            -     +0
3    Swiss Walt           4    60.0    3    7.75     0.0   -     -            -     +0
4    Seethebadge          2    60.0    4    11.00    1.5   -     -            -     +0
5    Winning Grace        2    57.5    5    11.10    1.5   -     -            -     +0
6    Butterfly Queen      2    57.5    6    11.20    1.5   -     -            -     +0
7    Slainte Mhath        4    60.0    7    12.70    0.0   -     -            -     +0
8    Josi Mo              2    57.5    8    12.95    1.5   -     -            -     +0
9    Follow The Band      2    60.0    9    15.20    1.5   -     -            -     +0
10   Future Africa        2    60.0    10   17.95    1.5   -     -            -     +0
99   Magic Measure        2    57.5    99   0.00     1.5   -     -            -     +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Questor - 94 - +94 1.5 -
2 Arturo - 76 - +76 1.5 -
3 Swiss Walt - 74 - +74 0.0 -
4 Seethebadge - 45 - +45 1.5 -
5 Winning Grace - 62 - +62 1.5 -
6 Butterfly Queen - 63 - +63 1.5 -
7 Slainte Mhath - 81 - +81 0.0 -
8 Josi Mo - 56 - +56 1.5 -
9 Follow The Band - 53 - +53 1.5 -
10 Future Africa - 72 - +72 1.5 -
99 Magic Measure - 28 - - 1.5 -
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