Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN JUVENILE PLATE (Fillies) (For 2 yof R100 000 Win BSA / CRS Bonus)

Back to Race
Line Horse
None identified
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
9 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Bonjour La Ville     2    60.0    1    0.00     2.0   -     -            -     +0
2    Augusta Rosso        2    60.0    2    1.25     2.0   -     -            -     +0
3    Olive Oyl            2    60.0    3    3.00     2.0   -     -            -     +0
4    Buddleja             2    60.0    4    7.25     2.0   -     -            -     +0
5    Ivy                  2    60.0    5    9.75     2.0   -     -            -     +0
6    Throw A Party        2    60.0    6    12.50    2.0   -     -            -     +0
7    Mind Freeze          2    60.0    7    13.00    2.0   -     -            -     +0
8    San Gimignano        2    60.0    8    16.50    2.0   -     -            -     +0
9    Looking Good         2    60.0    9    16.75    2.0   -     -            -     +0
10   Acapella             2    60.0    10   17.25    2.0   -     -            -     +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bonjour La Ville - 93 - +93 2.0 -
2 Augusta Rosso - 86 - +86 2.0 -
3 Olive Oyl - 77 - +77 2.0 -
4 Buddleja - 59 - +59 2.0 -
5 Ivy - 67 - +67 2.0 -
6 Throw A Party - 69 - +69 2.0 -
7 Mind Freeze - 72 - +72 2.0 -
8 San Gimignano - 44 - +44 2.0 -
9 Looking Good - 64 - +64 2.0 -
10 Acapella - - - ✓ Match 2.0 -
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