Official NHA Assessment

Race 2: www.tabgold.co.za QUALIFIED MAIDEN PLATE (Maidens with 3 runs or more & gross rating of 70 or less)

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Line Horse
Atlantic City
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
6 / 9
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    Player               3    60.0    1    0.00     10.0  62    58           58    -4
2    Atlantic City        3    60.0    2    1.30     10.0  61    61           61    +0
3    Top Ten              4    52.5    3    5.10     7.0   50    49           49    -1
4    Soviet Girl          2    52.5    4    9.40     0.0   65    63           63    -2
5    Wildstyle            2    56.0    5    9.55     0.0   57    70           70    +13
6    Mutirikwi            2    56.0    6    18.85    0.0   67    70           70    +3
7    Star Rated           3    60.0    7    38.85    10.0  42    58           58    +16
99   Luck Of The Iris     4    56.5    99   0.00     7.0   -     57           57    +0
99   Tommy The Kidd       4    60.0    99   0.00     7.0   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Player 62 84 58 +26 10.0 -
2 Atlantic City Line 61 58 61 -3 10.0
3 Top Ten 50 50 49 +1 7.0 -
4 Soviet Girl 65 62 63 -1 0.0 -
5 Wildstyle 57 62 70 -8 0.0 -
6 Mutirikwi 67 64 70 -6 0.0 -
7 Star Rated 42 38 58 -20 10.0 -
99 Luck Of The Iris - 47 57 -10 7.0 -
99 Tommy The Kidd - 53 64 -11 7.0 -
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