Official NHA Assessment

Race 2: www.tabgold.co.za MAIDEN PLATE (For all Maidens)

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Line Horse
One Irish Rover
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
7 / 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    Jet Legacy           5    60.0    1    0.00     0.0   -     74           6     +6
2    Kumemori             5    60.0    2    2.20     0.0   -     74           74    +74
3    One Irish Rover      5    58.5    3    3.90     0.0   71    71           71    +0
4    Shot Of Courage      3    60.0    4    4.60     3.5   47    67           67    +20
5    Rare Flag            3    60.0    5    6.20     3.5   62    67           67    +5
5    Benni In The Area    3    60.0    5    6.20     3.5   71    67           67    -4
7    Olympic Standard     3    60.0    7    7.70     3.5   56    67           67    +11
8    Frozen Kingdom       3    60.0    8    11.70    3.5   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 Jet Legacy - 89 6 +83 0.0 -
2 Kumemori - 71 74 -3 0.0 -
3 One Irish Rover Line 71 65 71 -6 0.0
4 Shot Of Courage 47 73 67 +6 3.5 -
5 Rare Flag 62 54 67 -13 3.5 -
5 Benni In The Area 71 78 67 +11 3.5 -
7 Olympic Standard 56 53 67 -14 3.5 -
8 Frozen Kingdom 57 46 67 -21 3.5 -
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