Official NHA Assessment

Race 3: FILTER-TECH MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Island Master
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 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    Petteia              2    60.0    1    0.00     0.0   66    68           68    +2
2    Portcullis           3    60.0    2    2.50     1.5   61    69           69    +8
3    Island Master        3    60.0    3    3.50     1.5   68    68           68    +0
4    Fearless Badger      4    60.0    4    4.00     0.5   60    69           69    +9
5    Belle's First Wave   3    60.0    5    4.10     1.5   53    67           67    +14
6    Take A Mulligan      4    60.0    6    8.60     0.5   68    67           67    -1
7    Mister Miyagi        3    58.5    7    11.85    1.5   50    62           62    +12
8    Pantador             2    56.0    8    21.10    0.0   40    60           60    +20
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Petteia 66 50 68 -18 0.0 -
2 Portcullis 61 63 69 -6 1.5 -
3 Island Master Line 68 67 68 -1 1.5
4 Fearless Badger 60 58 69 -11 0.5 -
5 Belle's First Wave 53 51 67 -16 1.5 -
6 Take A Mulligan 68 50 67 -17 0.5 -
7 Mister Miyagi 50 44 62 -18 1.5 -
8 Pantador 40 40 60 -20 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