Official NHA Assessment

Race 5: ONLINE FORM GUIDE www.gallop.co.za MAIDEN PLATE (For all Maidens)

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Line Horse
Napoleon
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
6 / 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    Napoleon             3    60.0    1    0.00     5.0   70    70           70    +0
2    Triton               3    60.0    2    1.40     5.0   66    73           73    +7
3    Clean Slate          3    60.0    3    3.20     5.0   72    72           72    +0
4    Mandala Effect       3    60.0    4    5.60     5.0   60    70           70    +10
4    Head Gardener        3    60.0    4    5.60     5.0   64    70           70    +6
6    Dunstealmythunda     3    60.0    6    5.70     5.0   51    70           70    +19
7    Tommy The Kidd       4    60.0    7    7.10     2.5   53    75           75    +22
8    Coral Copy           6    60.0    8    7.40     0.0   57    80           80    +23
9    Chipopo              3    58.5    9    99.99    5.0   30    67           67    +37
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Napoleon Line 70 72 70 +2 5.0
2 Triton 66 52 73 -21 5.0 -
3 Clean Slate 72 70 72 -2 5.0 -
4 Mandala Effect 60 54 70 -16 5.0 -
4 Head Gardener 64 66 70 -4 5.0 -
6 Dunstealmythunda 51 49 70 -21 5.0 -
7 Tommy The Kidd 53 53 75 -22 2.5 -
8 Coral Copy 57 54 80 -26 0.0 -
9 Chipopo 30 18 67 -49 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