Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Lana View
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
4 / 9
Within 2 points
Significant Diffs
4 / 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    Lana View            3    60.0    1    0.00     2.5   64    64           64    +0
2    Spurious             3    60.0    2    1.50     2.5   74    67           67    -7
3    Without Hesitation   2    60.0    3    5.75     0.0   52    69           69    +17
4    Red Lhasa            2    60.0    4    12.75    0.0   63    69           69    +6
5    Omnia                2    60.0    5    13.25    0.0   70    69           69    -1
6    Truly Magical        2    60.0    6    33.75    0.0   67    69           69    +2
99   Champagne Blaze      2    60.0    99   0.00     0.0   -     69           69    +0
99   French Romance       3    60.0    99   0.00     2.5   -     64           64    +0
99   Priceless Treasure   2    60.0    99   0.00     0.0   -     69           69    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lana View Line 64 64 64 ✓ Match 2.5
2 Spurious 74 74 67 +7 2.5 -
3 Without Hesitation 52 58 69 -11 0.0 -
4 Red Lhasa 63 63 69 -6 0.0 -
5 Omnia 70 70 69 +1 0.0 -
6 Truly Magical 67 67 69 -2 0.0 -
99 Champagne Blaze - 72 69 +3 0.0 -
99 French Romance - - 64 -64 2.5 -
99 Priceless Treasure - 70 69 +1 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