Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING SATURDAY 9 DECEMBER FM 76 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Chasing Happiness
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
2 / 13
Within 2 points
Significant Diffs
11 / 13
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    57.0    1    0.00     7.0   78    76           78    +0
2    Chasing Happiness    3    62.0    2    0.10     6.0   88    88           88    +0
3    There She Goes       6    58.0    3    0.25     0.0   80    92           92    +12
4    Women Of Fame        2    58.5    4    2.50     4.0   81    85           85    +4
5    Mia Fiore            4    58.0    5    3.00     7.0   72    78           78    +6
6    Miss Shaivi          4    58.0    6    3.20     7.0   80    78           78    -2
7    Red Carpet Girl      3    52.0    7    4.75     6.0   56    68           68    +12
8    Princess Ilaria      5    60.0    8    7.00     0.0   76    96           96    +20
9    Mix The Magic        3    52.0    9    8.00     6.0   60    68           68    +8
10   Dancing Arabian      4    52.0    10   13.50    7.0   60    66           66    +6
11   Dakota Cat           2    57.0    11   14.00    4.0   86    82           82    -4
12   Rugger Lover         2    55.0    12   21.00    4.0   74    78           78    +4
99   Mandalay             3    52.0    99   0.00     6.0   -     68           68    +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 78 70 78 -8 7.0 -
2 Chasing Happiness Line 88 110 88 +22 6.0
3 There She Goes 80 77 92 -15 0.0 -
4 Women Of Fame 81 79 85 -6 4.0 -
5 Mia Fiore 72 77 78 -1 7.0 -
6 Miss Shaivi 80 68 78 -10 7.0 -
7 Red Carpet Girl 56 55 68 -13 6.0 -
8 Princess Ilaria 76 79 96 -17 0.0 -
9 Mix The Magic 60 52 68 -16 6.0 -
10 Dancing Arabian 60 60 66 -6 7.0 -
11 Dakota Cat 86 61 82 -21 4.0 -
12 Rugger Lover 74 79 78 +1 4.0 -
99 Mandalay - 53 68 -15 6.0 -
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