Official NHA Assessment

Race 6: BETONTAB.CO.ZA MR 100 HANDICAP (Open)

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Line Horse
Team Gold
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
8 / 10
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    Irish Tractor        4    56.0    1    0.00     1.5   92    97           92    +0
2    Willow Express       7    60.0    2    0.25     0.0   100   108          108   +8
3    Team Gold            3    56.0    3    0.75     3.0   98    98           98    +0
4    Noble Striker        3    57.0    4    1.75     3.0   100   99           99    -1
5    City By The Sea      4    54.5    5    2.00     1.5   89    97           97    +8
6    Chijmes              6    60.0    6    3.25     0.0   100   110          110   +10
7    Mardi Gras           7    59.5    7    3.75     0.0   104   108          108   +4
8    All Of Me            6    57.5    8    9.00     0.0   95    103          103   +8
9    Constable            5    61.0    9    11.00    0.0   102   110          110   +8
99   Leopold              5    56.5    99   0.00     0.0   -     101          101   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Irish Tractor 92 102 92 +10 1.5 -
2 Willow Express 100 82 108 -26 0.0 -
3 Team Gold Line 98 97 98 -1 3.0
4 Noble Striker 100 98 99 -1 3.0 -
5 City By The Sea 89 74 97 -23 1.5 -
6 Chijmes 100 94 110 -16 0.0 -
7 Mardi Gras 104 83 108 -25 0.0 -
8 All Of Me 95 94 103 -9 0.0 -
9 Constable 102 95 110 -15 0.0 -
99 Leopold - 79 101 -22 0.0 -
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