Official NHA Assessment

Race 9: WWW.RACINGTODAY.CO.ZA FM 93 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Virgin River
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
4 / 10
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    Cosmic Queen         3    55.5    1    0.00     2.5   87    79           87    +0
2    Whistle The Tune     2    63.5    2    1.20     1.5   103   97           97    -6
3    Virgin River         5    54.0    3    2.60     0.0   81    81           81    +0
4    Kia Kaha             3    54.0    4    4.60     2.5   84    76           76    -8
5    Neerah               2    52.0    5    4.90     1.5   77    74           74    -3
6    Night Vigil          4    59.5    6    5.00     0.0   92    92           92    +0
7    Quasikat             3    53.5    7    7.30     2.5   83    75           75    -8
8    Simply Majestic      3    56.5    8    7.55     2.5   89    81           81    -8
9    Mist In Scotland     2    53.5    9    8.85     1.5   80    77           77    -3
10   You Bring Me Joy     3    52.0    10   12.85    2.5   80    72           72    -8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Cosmic Queen 87 97 87 +10 2.5 -
2 Whistle The Tune 103 116 97 +19 1.5 -
3 Virgin River Line 81 95 81 +14 0.0
4 Kia Kaha 84 71 76 -5 2.5 -
5 Neerah 77 77 74 +3 1.5 -
6 Night Vigil 92 91 92 -1 0.0 -
7 Quasikat 83 83 75 +8 2.5 -
8 Simply Majestic 89 85 81 +4 2.5 -
9 Mist In Scotland 80 77 77 ✓ Match 1.5 -
10 You Bring Me Joy 80 77 72 +5 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