Official NHA Assessment

Race 6: OK WHATSAPP SHOPPING MIDDLE STAKES (For horses with nett rating of 92 and below)

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Line Horse
Varnica
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
3 / 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    Oden                 6    60.0    1    0.00     0.0   80    84           84    +4
2    Gladstone            5    60.0    2    0.50     0.0   81    84           84    +3
3    Varnica              5    57.5    3    0.75     0.0   79    79           79    +0
4    Enrapture            5    57.5    4    2.50     0.0   78    79           79    +1
5    Tradition            4    58.0    5    4.25     2.5   77    75           75    -2
6    Emerald Floe         4    59.5    6    5.75     2.5   83    78           78    -5
7    Mr Hugo              5    58.0    7    11.75    0.0   74    80           80    +6
8    In Good Time         5    55.5    8    13.25    0.0   73    75           75    +2
99   Veseo                5    53.5    99   0.00     0.0   -     71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Oden 80 88 84 +4 0.0 -
2 Gladstone 81 81 84 -3 0.0 -
3 Varnica Line 79 90 79 +11 0.0
4 Enrapture 78 82 79 +3 0.0 -
5 Tradition 77 77 75 +2 2.5 -
6 Emerald Floe 83 82 78 +4 2.5 -
7 Mr Hugo 74 72 80 -8 0.0 -
8 In Good Time 73 71 75 -4 0.0 -
99 Veseo - 64 71 -7 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