Official NHA Assessment

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

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Line Horse
Tuscan Star
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 8
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    Tuscan Star          3    60.0    1    0.00     7.0   79    79           79    +0
2    Asiah's Tiara        3    57.5    2    1.40     7.0   -     77           77    +77
3    Lady Sabrina         3    60.0    3    4.50     7.0   -     79           79    +79
4    Ono No Komachi       3    60.0    4    8.75     7.0   73    79           79    +6
5    Precious Beauty      3    60.0    5    10.75    7.0   -     79           79    +79
6    Bella Boop Boop      3    58.5    6    12.75    7.0   64    76           76    +12
7    Lacewing             3    60.0    7    16.00    7.0   81    79           79    -2
99   Lady William         3    60.0    99   0.00     7.0   -     79           79    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tuscan Star Line 79 77 79 -2 7.0
2 Asiah's Tiara - 56 77 -21 7.0 -
3 Lady Sabrina - 82 79 +3 7.0 -
4 Ono No Komachi 73 66 79 -13 7.0 -
5 Precious Beauty - 60 79 -19 7.0 -
6 Bella Boop Boop 64 58 76 -18 7.0 -
7 Lacewing 81 71 79 -8 7.0 -
99 Lady William - 59 79 -20 7.0 -
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