Official NHA Assessment

Race 1: www.tabgold.co.za MAIDEN PLATE (3 year-olds) (For Maiden 3 year-olds)

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Line Horse
Umthombo Wolwazi
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
11 / 11
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    Umthombo Wolwazi     2    60.0    1    0.00     6.5   80    80           80    +0
2    Can't Catch Me       5    57.5    2    0.75     0.0   -     88           88    +88
3    Walking On Wings     3    60.0    3    1.25     9.5   -     74           74    +74
4    Hunters Arrow        2    60.0    4    2.05     6.5   -     80           80    +80
5    Paris Pike           2    57.5    5    3.75     6.5   69    75           75    +6
6    African Dusk         5    60.0    6    6.05     0.0   -     93           93    +93
7    Eugene               3    60.0    7    7.05     9.5   -     74           74    +74
8    Book Of Dreams       3    60.0    8    8.15     9.5   -     74           74    +74
9    Future Approach      3    60.0    9    8.65     9.5   -     74           74    +74
10   Roy Major            3    60.0    10   8.85     9.5   -     74           74    +74
11   Fly Away Robyn       3    58.5    11   8.90     9.5   -     71           71    +71
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Umthombo Wolwazi Line 80 91 80 +11 6.5
2 Can't Catch Me - 58 88 -30 0.0 -
3 Walking On Wings - - 74 -74 9.5 -
4 Hunters Arrow - 54 80 -26 6.5 -
5 Paris Pike 69 83 75 +8 6.5 -
6 African Dusk - 83 93 -10 0.0 -
7 Eugene - 52 74 -22 9.5 -
8 Book Of Dreams - 60 74 -14 9.5 -
9 Future Approach - - 74 -74 9.5 -
10 Roy Major - 45 74 -29 9.5 -
11 Fly Away Robyn - 48 71 -23 9.5 -
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