Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING FRIDAY 20 SEPTEMBER FM 72 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Miss Shaivi
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 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    Kabon Kapi           5    59.0    1    0.00     0.0   73    92           73    +0
2    Ella's Delight       2    61.5    2    0.50     6.5   75    84           84    +9
3    Miss Shaivi          4    59.0    3    1.75     11.0  70    70           70    +0
4    Can't Say No         3    60.0    4    2.00     9.5   85    75           75    -10
5    Project Runway       3    57.5    5    3.25     9.5   80    70           70    -10
6    Kileigh's Fate       4    52.0    6    4.25     11.0  50    56           56    +6
7    Bretty               3    56.5    7    4.35     9.5   78    68           68    -10
8    Si Gioca             2    58.0    8    4.60     6.5   68    77           77    +9
9    Vision Of Will       3    57.0    9    4.85     9.5   66    69           69    +3
10   Bossy Boots          4    59.5    10   9.60     11.0  71    71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kabon Kapi 73 96 73 +23 0.0 -
2 Ella's Delight 75 71 84 -13 6.5 -
3 Miss Shaivi Line 70 68 70 -2 11.0
4 Can't Say No 85 83 75 +8 9.5 -
5 Project Runway 80 79 70 +9 9.5 -
6 Kileigh's Fate 50 48 56 -8 11.0 -
7 Bretty 78 60 68 -8 9.5 -
8 Si Gioca 68 62 77 -15 6.5 -
9 Vision Of Will 66 66 69 -3 9.5 -
10 Bossy Boots 71 51 71 -20 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