Official NHA Assessment

Race 3: WWW.HIGHVELDRACING.CO.ZA MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Stormy Lass
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
10 / 12
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    Stormy Lass          3    60.0    1    0.00     2.5   62    62           62    +0
2    Silver Winter        2    57.0    2    5.00     1.5   -     58           58    +58
3    Nazdarovya           3    60.0    3    6.50     2.5   67    62           62    -5
4    Miss Soho            2    57.0    4    8.00     1.5   -     58           58    +58
5    Smelting             7    60.0    5    12.00    0.0   59    67           67    +8
6    Peronzada            3    60.0    6    13.25    2.5   -     62           62    +62
7    Special Plea         3    60.0    7    15.25    2.5   56    62           62    +6
8    Ebullience           3    60.0    8    17.25    2.5   -     62           62    +62
99   On Duty              3    60.0    99   0.00     2.5   -     62           62    +0
99   Luv You Too          3    60.0    99   0.00     2.5   -     62           62    +0
99   Quick And Easy       3    60.0    99   0.00     2.5   -     62           62    +0
99   British Diva         3    60.0    99   0.00     2.5   -     62           62    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Stormy Lass Line 62 61 62 -1 2.5
2 Silver Winter - 88 58 +30 1.5 -
3 Nazdarovya 67 63 62 +1 2.5 -
4 Miss Soho - 73 58 +15 1.5 -
5 Smelting 59 52 67 -15 0.0 -
6 Peronzada - 56 62 -6 2.5 -
7 Special Plea 56 54 62 -8 2.5 -
8 Ebullience - 49 62 -13 2.5 -
99 On Duty - 45 62 -17 2.5 -
99 Luv You Too - 45 62 -17 2.5 -
99 Quick And Easy - - 62 -62 2.5 -
99 British Diva - 50 62 -12 2.5 -
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