Official NHA Assessment

Race 5: RACEHORSE OWNERS ASSOCIATION MIDDLE STAKES (For horses with nett rating of 101 and below)

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Line Horse
Ballroom Bliss
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
3 / 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    Destiny Of Souls     2    54.0    1    0.00     0.0   87    98           93    +6
2    Ballroom Bliss       4    51.5    2    3.00     7.0   82    82           82    +0
3    Bey Suyay            4    54.0    3    3.75     7.0   85    86           86    +1
4    Luthuli              5    50.0    4    4.25     0.0   77    92           92    +15
5    Stratospheric        2    60.0    5    6.25     0.0   97    110          110   +13
6    Terra Time           3    57.5    6    6.50     10.0  97    85           87    -10
7    Twin Turbo           4    56.0    7    10.00    7.0   87    88           88    +1
8    The Kop              4    53.5    8    27.00    7.0   86    83           83    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Destiny Of Souls 87 89 93 -4 0.0 -
2 Ballroom Bliss Line 82 84 82 +2 7.0
3 Bey Suyay 85 84 86 -2 7.0 -
4 Luthuli 77 74 92 -18 0.0 -
5 Stratospheric 97 97 110 -13 0.0 -
6 Terra Time 97 96 87 +9 10.0 -
7 Twin Turbo 87 88 88 ✓ Match 7.0 -
8 The Kop 86 78 83 -5 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