Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Si Gioca
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
5 / 7
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    Si Gioca             2    60.0    1    0.00     3.5   70    70           70    +0
2    Keenonkelly          2    57.5    2    3.75     3.5   63    65           65    +2
3    Sunset Roar          2    60.0    3    5.00     3.5   62    70           70    +8
4    Gotcha Buzz          2    60.0    4    5.50     3.5   73    70           70    -3
5    Bella Attrice        2    60.0    5    8.75     3.5   64    70           70    +6
6    Sankofa              3    60.0    6    24.00    5.0   60    67           67    +7
99   Best Intentions      2    60.0    99   0.00     3.5   -     70           70    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Si Gioca Line 70 62 70 -8 3.5
2 Keenonkelly 63 53 65 -12 3.5 -
3 Sunset Roar 62 57 70 -13 3.5 -
4 Gotcha Buzz 73 61 70 -9 3.5 -
5 Bella Attrice 64 66 70 -4 3.5 -
6 Sankofa 60 55 67 -12 5.0 -
99 Best Intentions - 67 70 -3 3.5 -
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