Official NHA Assessment

Race 3: RACEHORSE OWNERS ASSOCIATION MAIDEN PLATE (F & M) (For Maiden (F&M) R15 000 Win Bonus ROA Members)

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Line Horse
Bella Attrice
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
7 / 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    Free World           3    60.0    1    0.00     2.0   59    60           60    +1
2    September Flower     2    57.0    2    1.25     1.0   -     56           56    +56
3    Ponte Vecchio        2    60.0    3    1.50     1.0   57    62           62    +5
4    Bella Attrice        2    60.0    4    1.60     1.0   62    62           62    +0
5    Gotcha Buzz          2    60.0    5    2.35     1.0   66    62           62    -4
6    String Of Lights     4    60.0    6    5.10     2.5   64    59           59    -5
7    Tartan Queen         2    57.5    7    5.20     1.0   -     57           57    +57
8    Tune Again           6    60.0    8    6.45     0.0   49    64           64    +15
9    Carved In Stone      4    56.0    9    6.95     2.5   38    51           51    +13
10   Adriana Elle         3    56.0    10   7.45     2.0   -     52           52    +52
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Free World 59 62 60 +2 2.0 -
2 September Flower - 91 56 +35 1.0 -
3 Ponte Vecchio 57 56 62 -6 1.0 -
4 Bella Attrice Line 62 66 62 +4 1.0
5 Gotcha Buzz 66 61 62 -1 1.0 -
6 String Of Lights 64 66 59 +7 2.5 -
7 Tartan Queen - 70 57 +13 1.0 -
8 Tune Again 49 50 64 -14 0.0 -
9 Carved In Stone 38 41 51 -10 2.5 -
10 Adriana Elle - 42 52 -10 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