Official NHA Assessment

Race 1: BETWAY INSUREBET MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Best Intentions
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
8 / 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    Chasing Happiness    3    58.0    1    0.00     9.5   -     67           6     +6
2    Signora Bomba        2    58.0    2    4.10     6.5   69    73           73    +4
3    Gotcha Buzz          2    58.0    3    4.40     6.5   70    73           73    +3
4    Best Intentions      2    58.0    4    5.40     6.5   73    73           73    +0
5    Sankofa              3    60.0    5    6.60     9.5   50    71           71    +21
6    Zoom Lady            2    60.0    6    9.20     6.5   60    77           77    +17
7    Racing Pigeon        2    55.5    7    11.10    6.5   -     68           68    +68
8    Cocktail Girl        2    58.0    8    11.60    6.5   67    73           73    +6
9    Tiffany              3    58.0    9    17.00    9.5   -     67           67    +67
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Chasing Happiness - 110 6 +104 9.5 -
2 Signora Bomba 69 69 73 -4 6.5 -
3 Gotcha Buzz 70 61 73 -12 6.5 -
4 Best Intentions Line 73 67 73 -6 6.5
5 Sankofa 50 55 71 -16 9.5 -
6 Zoom Lady 60 60 77 -17 6.5 -
7 Racing Pigeon - 59 68 -9 6.5 -
8 Cocktail Girl 67 65 73 -8 6.5 -
9 Tiffany - 35 67 -32 9.5 -
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