Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING TUESDAY 28 APRIL FM 82 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Miss Novax
Reference for assessment
Exact Matches
3 / 12
Calculated = Official
Close Matches
6 / 12
Within 2 points
Significant Diffs
2 / 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    Sigrid Swing         4    54.0    1    0.00     3.5   70    71           70    +0
2    Ada Lovelace         2    53.0    2    0.90     2.0   72    72           72    +0
3    Miss Novax           2    59.0    3    3.90     2.0   84    84           84    +0
4    Lovable              3    56.5    4    4.20     3.0   79    77           77    -2
5    Bell Of Angelus      2    52.5    5    4.50     2.0   71    71           71    +0
6    Kylie's Angel        3    49.5    6    5.00     3.0   57    63           63    +6
7    Inspiration          2    56.5    7    6.00     2.0   79    79           79    +0
8    Royal Kailani        2    58.5    8    6.20     2.0   83    83           83    +0
9    Wise Counsel         2    59.0    9    6.90     2.0   84    84           84    +0
10   Valieva              3    58.0    10   9.90     3.0   78    80           80    +2
99   Quiet Winter         2    56.5    99   0.00     2.0   -     79           79    +0
99   Caroline Island      2    60.0    99   0.00     2.0   -     86           86    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sigrid Swing 70 76 70 +6 3.5 -
2 Ada Lovelace 72 75 72 +3 2.0 -
3 Miss Novax Line 84 83 84 -1 2.0
4 Lovable 79 78 77 +1 3.0 -
5 Bell Of Angelus 71 69 71 -2 2.0 -
6 Kylie's Angel 57 57 63 -6 3.0 -
7 Inspiration 79 76 79 -3 2.0 -
8 Royal Kailani 83 79 83 -4 2.0 -
9 Wise Counsel 84 84 84 ✓ Match 2.0 -
10 Valieva 78 76 80 -4 3.0 -
99 Quiet Winter - 79 79 ✓ Match 2.0 -
99 Caroline Island - 86 86 ✓ Match 2.0 -
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