Official NHA Assessment

Race 7: WORLD SPORTS BETTING LEADERS IN FIXED ODDS CAPE B STAKES (F & M) (For Fillies & Mares with a nett rating of 94 & below)

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Line Horse
Bonika
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
6 / 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    Fusillade            4    55.5    1    0.00     0.5   82    77           77    -5
2    Bonika               2    60.0    2    1.25     0.0   91    91           91    +0
3    Miss Greenlight      3    57.0    3    3.25     0.5   84    82           82    -2
4    Gimmeafirst          2    55.5    4    6.50     0.0   84    78           78    -6
5    Red Sash             5    55.5    5    6.90     0.0   83    78           78    -5
6    Perilla              5    51.0    6    8.15     0.0   75    69           69    -6
7    Fun Zone             5    60.0    7    8.90     0.0   92    87           87    -5
8    Inara's Dynasty      2    60.0    8    17.40    0.0   91    87           87    -4
9    Betty Boop           2    58.5    9    27.65    0.0   88    84           84    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Fusillade 82 84 77 +7 0.5 -
2 Bonika Line 91 80 91 -11 0.0
3 Miss Greenlight 84 100 82 +18 0.5 -
4 Gimmeafirst 84 79 78 +1 0.0 -
5 Red Sash 83 101 78 +23 0.0 -
6 Perilla 75 89 69 +20 0.0 -
7 Fun Zone 92 96 87 +9 0.0 -
8 Inara's Dynasty 91 89 87 +2 0.0 -
9 Betty Boop 88 88 84 +4 0.0 -
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