Official NHA Assessment

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

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Line Horse
Fantasy Girl
Reference for assessment
Exact Matches
2 / 9
Calculated = Official
Close Matches
2 / 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    Physiologus          2    60.0    1    0.00     6.5   59    58           58    -1
2    Tanzanite            2    58.0    2    0.10     6.5   -     54           54    +54
3    Sombreuil            2    58.0    3    0.15     6.5   67    54           57    -10
4    Elusive Bomba        3    60.0    4    0.90     9.5   -     52           52    +52
5    Fantasy Girl         2    60.0    5    2.40     6.5   58    58           58    +0
6    Mediterraneanflame   3    58.0    6    2.90     9.5   -     48           48    +48
7    Caughtubysurprise    3    60.0    7    4.15     9.5   -     52           52    +52
8    Night In Japan       3    60.0    8    5.90     9.5   63    52           53    -10
9    Goldielox            4    60.0    9    8.15     11.0  -     49           49    +49
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Physiologus 59 53 58 -5 6.5 -
2 Tanzanite - 73 54 +19 6.5 -
3 Sombreuil 67 70 57 +13 6.5 -
4 Elusive Bomba - 59 52 +7 9.5 -
5 Fantasy Girl Line 58 58 58 ✓ Match 6.5
6 Mediterraneanflame - 60 48 +12 9.5 -
7 Caughtubysurprise - 52 52 ✓ Match 9.5 -
8 Night In Japan 63 49 53 -4 9.5 -
9 Goldielox - - 49 -49 11.0 -
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