Official NHA Assessment

Race 1: DOWNLOAD THE RACE CARD ONLINE www.goldcircle.co.za MAIDEN PLATE (For all Maidens)

Back to Race
Line Horse
Cotton Ron
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
4 / 8
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Fish Eagle           5    60.0    1    0.00     0.0   74    62           62    -12
2    Victor Rail          5    58.5    2    1.80     0.0   -     59           59    +59
3    Brosnan              2    60.0    3    1.85     2.5   72    57           62    -10
4    Cotton Ron           6    60.0    4    2.55     0.0   62    62           62    +0
5    Magwinya             2    60.0    5    2.85     2.5   67    57           57    -10
6    Blitzen              2    58.5    6    6.25     2.5   58    54           54    -4
7    Let Em Go            5    60.0    7    8.25     0.0   50    62           62    +12
8    Iron Monger          2    60.0    8    8.85     2.5   -     57           57    +57
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Fish Eagle 74 71 62 +9 0.0 -
2 Victor Rail - 61 59 +2 0.0 -
3 Brosnan 72 75 62 +13 2.5 -
4 Cotton Ron Line 62 59 62 -3 0.0
5 Magwinya 67 50 57 -7 2.5 -
6 Blitzen 58 57 54 +3 2.5 -
7 Let Em Go 50 57 62 -5 0.0 -
8 Iron Monger - 64 57 +7 2.5 -
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