Official NHA Assessment

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

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Line Horse
King's Spear
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
4 / 8
Within 2 points
Significant Diffs
3 / 8
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    Giocatore            2    58.5    1    0.00     2.0   70    56           56    -14
2    Caberneigh           3    58.5    2    1.40     3.0   -     54           54    +54
3    Victor Rail          5    60.0    3    1.45     0.0   -     63           63    +63
4    King's Spear         4    60.0    4    3.05     3.5   56    56           56    +0
5    Insightful           3    60.0    5    4.65     3.0   69    57           59    -10
99   Elusive Justice      3    60.0    99   0.00     3.0   -     57           57    +0
99   Mighty Rain          3    60.0    99   0.00     3.0   -     57           57    +0
99   Lots Of Magic        2    57.5    99   0.00     2.0   -     54           54    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Giocatore 70 67 56 +11 2.0 -
2 Caberneigh - 61 54 +7 3.0 -
3 Victor Rail - 61 63 -2 0.0 -
4 King's Spear Line 56 54 56 -2 3.5
5 Insightful 69 60 59 +1 3.0 -
99 Elusive Justice - 61 57 +4 3.0 -
99 Mighty Rain - 46 57 -11 3.0 -
99 Lots Of Magic - 56 54 +2 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