Official NHA Assessment

Race 2: CAPE TURF CLUB SYNDICATES PROGRESS PLATE (For Maidens, 1, 2 & 3 time winners)

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Line Horse
Light Speed
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
4 / 7
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    Promettere           5    54.5    1    0.00     0.0   83    92           70    -13
2    Wecangoallnight      2    60.5    2    0.05     0.0   106   104          104   -2
3    Itsrainingwilliam    2    58.0    3    0.80     0.0   108   103          103   -5
4    We're Jamming        5    60.5    4    1.80     0.0   117   107          107   -10
5    Light Speed          2    59.0    5    2.80     0.0   103   103          103   +0
6    Piroshka             5    57.5    6    5.05     0.0   93    98           98    +5
7    Gimme's Lassie       5    55.0    7    10.80    0.0   101   93           93    -8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Promettere 83 98 70 +28 0.0 -
2 Wecangoallnight 106 95 104 -9 0.0 -
3 Itsrainingwilliam 108 108 103 +5 0.0 -
4 We're Jamming 117 108 107 +1 0.0 -
5 Light Speed Line 103 103 103 ✓ Match 0.0
6 Piroshka 93 72 98 -26 0.0 -
7 Gimme's Lassie 101 101 93 +8 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