Official NHA Assessment

Race 5: WWW.TAB4RACING.COM MIDDLE STAKES (For horses with nett rating of 92 and below)

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Line Horse
Ballroom Bliss
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
8 / 11
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    Southern Song        4    55.5    1    0.00     7.0   85    81           81    -4
2    Ballroom Bliss       4    57.5    2    0.50     7.0   90    90           90    +0
3    Terra Time           3    55.5    3    1.50     10.0  86    78           78    -8
4    Great Affair         7    56.0    4    3.00     0.0   81    98           98    +17
5    Paton's Tears        4    56.0    5    3.25     7.0   85    84           84    -1
6    Imperial Master      4    60.0    6    3.35     7.0   92    91           91    -1
7    The Kop              4    57.5    7    3.75     7.0   89    86           86    -3
8    Afraad               8    56.0    8    5.00     0.0   78    96           96    +18
9    King's Crusade       4    56.5    9    5.50     7.0   84    83           83    -1
10   Snow Palace          5    57.5    10   7.75     0.0   89    99           99    +10
11   Wolffs World         4    56.0    11   8.75     7.0   79    82           82    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Southern Song 85 90 81 +9 7.0 -
2 Ballroom Bliss Line 90 84 90 -6 7.0
3 Terra Time 86 96 78 +18 10.0 -
4 Great Affair 81 63 98 -35 0.0 -
5 Paton's Tears 85 78 84 -6 7.0 -
6 Imperial Master 92 90 91 -1 7.0 -
7 The Kop 89 78 86 -8 7.0 -
8 Afraad 78 79 96 -17 0.0 -
9 King's Crusade 84 81 83 -2 7.0 -
10 Snow Palace 89 87 99 -12 0.0 -
11 Wolffs World 79 79 82 -3 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