Official NHA Assessment

Race 1: CATCH KZN RACING VIA LIVE STREAMING ON www.galloptv.co.za CONDITIONAL MAIDEN (Maidens with 3 runs or more & Nett Rating

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Line Horse
Shot Of Courage
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 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    Inventrix            2    56.5    1    0.00     1.5   68    68           68    +0
2    Victor Rail          5    60.0    2    0.30     0.0   69    78           78    +9
3    Shot Of Courage      3    53.0    3    2.00     2.5   59    59           59    +0
4    One Irish Rover      5    60.0    4    3.30     0.0   69    78           78    +9
5    Cotton Ron           6    58.0    5    4.80     0.0   62    74           74    +12
6    King's Spear         4    57.0    6    5.20     0.0   58    72           72    +14
7    Tiger In Red         3    57.5    7    8.00     2.5   68    68           68    +0
8    Rare Flag            3    57.0    8    8.70     2.5   57    67           67    +10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Inventrix 68 73 68 +5 1.5 -
2 Victor Rail 69 61 78 -17 0.0 -
3 Shot Of Courage Line 59 73 59 +14 2.5
4 One Irish Rover 69 65 78 -13 0.0 -
5 Cotton Ron 62 59 74 -15 0.0 -
6 King's Spear 58 54 72 -18 0.0 -
7 Tiger In Red 68 66 68 -2 2.5 -
8 Rare Flag 57 54 67 -13 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