Official NHA Assessment

Race 4: TRACK AND BALL UMLAZI MAIDEN PLATE (For all Maidens)

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Line Horse
Death Blow
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
0 / 13
Within 2 points
Significant Diffs
10 / 13
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    Intrepid Act         3    60.0    1    0.00     1.5   65    54           54    -11
2    Professor Snape      2    56.0    2    0.40     0.0   -     54           54    +54
3    Dowser               5    56.0    3    1.50     0.0   -     52           52    +52
4    Death Blow           4    60.0    4    1.75     0.5   59    59           59    +0
5    Giants Castle        4    60.0    5    2.55     0.5   56    58           58    +2
6    Phantomoftheforest   3    60.0    6    2.60     1.5   59    56           56    -3
7    Osceola              2    56.0    7    2.65     0.0   -     51           51    +51
8    Forgotten Time       3    60.0    8    2.95     1.5   68    56           58    -10
9    Shot Of Courage      3    60.0    9    10.45    1.5   50    54           54    +4
10   Tommy The Kidd       4    60.0    10   13.95    0.5   53    56           56    +3
99   Creator              3    60.0    99   0.00     1.5   -     54           54    +0
99   Declaration Of War   5    60.0    99   0.00     0.0   -     57           57    +0
99   Coral Copy           6    56.0    99   0.00     0.0   -     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 Intrepid Act 65 64 54 +10 1.5 -
2 Professor Snape - 68 54 +14 0.0 -
3 Dowser - 84 52 +32 0.0 -
4 Death Blow Line 59 52 59 -7 0.5
5 Giants Castle 56 64 58 +6 0.5 -
6 Phantomoftheforest 59 50 56 -6 1.5 -
7 Osceola - 71 51 +20 0.0 -
8 Forgotten Time 68 76 58 +18 1.5 -
9 Shot Of Courage 50 73 54 +19 1.5 -
10 Tommy The Kidd 53 53 56 -3 0.5 -
99 Creator - 46 54 -8 1.5 -
99 Declaration Of War - 52 57 -5 0.0 -
99 Coral Copy - 54 49 +5 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