Official NHA Assessment

Race 3: TABONLINE.CO.ZA MAIDEN PLATE (For all Maidens)

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Line Horse
Donder Storm
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 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    Quatermain           2    57.0    1    0.00     0.0   82    75           75    -7
2    Hawk Circle          2    57.0    2    1.25     0.0   -     79           79    +79
3    Teatro               5    57.0    3    1.35     0.0   85    78           78    -7
4    Run Rudolph Run      3    60.0    4    1.75     9.0   63    66           66    +3
5    Machete Man          2    57.0    5    3.25     0.0   43    77           77    +34
6    Donder Storm         3    60.0    6    3.30     9.0   64    64           64    +0
7    Jack Ryan            2    57.0    7    5.05     0.0   -     75           75    +75
8    Icanseeclearlynow    3    60.0    8    8.55     9.0   54    63           63    +9
9    Western Wall         3    60.0    9    11.80    9.0   30    63           63    +33
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Quatermain 82 79 75 +4 0.0 -
2 Hawk Circle - 68 79 -11 0.0 -
3 Teatro 85 91 78 +13 0.0 -
4 Run Rudolph Run 63 57 66 -9 9.0 -
5 Machete Man 43 90 77 +13 0.0 -
6 Donder Storm Line 64 63 64 -1 9.0
7 Jack Ryan - 63 75 -12 0.0 -
8 Icanseeclearlynow 54 52 63 -11 9.0 -
9 Western Wall 30 51 63 -12 9.0 -
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