Official NHA Assessment

Race 5: CELEBRATING CENTURION MEMBER MONTY GOVENDER'S BIRTHDAY CLASS 3 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 96)

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Line Horse
Callmegetrix
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
5 / 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    Gimmethatpearl       3    57.0    1    0.00     6.0   90    81           81    -9
2    Fatal Gem            4    57.0    2    1.50     3.0   90    90           90    +0
3    Callmegetrix         4    56.5    3    1.80     3.0   89    89           89    +0
4    Hampstead Heath      4    54.5    4    3.05     3.0   85    84           84    -1
5    Fun Zone             5    55.5    5    3.45     0.0   87    91           91    +4
6    Epikleros            2    55.5    6    6.70     0.0   87    90           90    +3
7    Qhawekazi            3    53.0    7    9.20     6.0   81    73           73    -8
99   Princess Izzy        2    61.0    99   0.00     0.0   -     101          101   +0
99   Whistle The Tune     2    57.5    99   0.00     0.0   -     94           94    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Gimmethatpearl 90 98 81 +17 6.0 -
2 Fatal Gem 90 91 90 +1 3.0 -
3 Callmegetrix Line 89 113 89 +24 3.0
4 Hampstead Heath 85 75 84 -9 3.0 -
5 Fun Zone 87 96 91 +5 0.0 -
6 Epikleros 87 96 90 +6 0.0 -
7 Qhawekazi 81 78 73 +5 6.0 -
99 Princess Izzy - 104 101 +3 0.0 -
99 Whistle The Tune - 116 94 +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