Official NHA Assessment

Race 1: DOWNLOAD THE RACE CARD ONLINE www.goldcircle.co.za CONDITIONAL MAIDEN (Maidens with 3 runs or more & Nett Rating of 71 o

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Line Horse
Oshakati
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
1 / 13
Within 2 points
Significant Diffs
8 / 13
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    One Irish Rover      5    60.0    1    0.00     0.0   71    72           70    -1
2    Oshakati             2    60.0    2    2.30     0.5   71    71           71    +0
3    Breath Of Magic      4    56.0    3    5.40     2.0   72    60           62    -10
4    King's Spear         4    55.0    4    9.10     2.0   56    58           58    +2
5    Railroad             2    56.5    5    13.50    0.5   79    64           69    -10
6    Du Cane              2    55.0    6    13.80    0.5   57    61           61    +4
7    Divine Power         3    50.0    7    15.20    1.5   41    49           49    +8
8    Lots Of Magic        2    54.5    8    21.50    0.5   59    60           60    +1
99   Olverston            2    54.0    99   0.00     0.5   -     59           59    +0
99   Magic Prince         2    60.0    99   0.00     0.5   -     71           71    +0
99   Everyonelovesagrey   2    52.5    99   0.00     0.5   -     56           56    +0
99   Victor Rail          5    60.0    99   0.00     0.0   -     72           72    +0
99   Cotton Ron           6    57.0    99   0.00     0.0   -     66           66    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 One Irish Rover 71 65 70 -5 0.0 -
2 Oshakati Line 71 59 71 -12 0.5
3 Breath Of Magic 72 60 62 -2 2.0 -
4 King's Spear 56 54 58 -4 2.0 -
5 Railroad 79 60 69 -9 0.5 -
6 Du Cane 57 45 61 -16 0.5 -
7 Divine Power 41 41 49 -8 1.5 -
8 Lots Of Magic 59 56 60 -4 0.5 -
99 Olverston - 45 59 -14 0.5 -
99 Magic Prince - 66 71 -5 0.5 -
99 Everyonelovesagrey - 62 56 +6 0.5 -
99 Victor Rail - 61 72 -11 0.0 -
99 Cotton Ron - 59 66 -7 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