Official NHA Assessment

Race 6: www.trackandball.co.za MR 65 HANDICAP (Open)

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Line Horse
Miss Lialah
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
5 / 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    Ravens Sword         3    60.0    1    0.00     5.0   65    55           65    +0
2    Phaka Imali          3    56.0    2    0.25     5.0   57    47           47    -10
3    Miss Lialah          4    55.5    3    0.55     2.5   56    56           56    +0
4    Exceed Expectation   3    57.0    4    1.95     5.0   62    52           52    -10
5    Bugsy Malone         5    53.5    5    4.55     0.0   52    52           52    +0
6    Blue Eyes            4    55.5    6    11.65    2.5   56    51           51    -5
7    Ebony Bay            3    58.5    7    12.55    5.0   72    52           62    -10
99   Quiz Master          3    57.0    99   0.00     5.0   -     49           49    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ravens Sword 65 53 65 -12 5.0 -
2 Phaka Imali 57 62 47 +15 5.0 -
3 Miss Lialah Line 56 65 56 +9 2.5
4 Exceed Expectation 62 52 52 ✓ Match 5.0 -
5 Bugsy Malone 52 49 52 -3 0.0 -
6 Blue Eyes 56 56 51 +5 2.5 -
7 Ebony Bay 72 50 62 -12 5.0 -
99 Quiz Master - 60 49 +11 5.0 -
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