Official NHA Assessment

Race 6: TAB 4RACING APP MR 90 HANDICAP (Open)

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Line Horse
Back To Black
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
4 / 9
Within 2 points
Significant Diffs
5 / 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    Another Level        3    58.0    1    0.00     8.5   87    80           87    +0
2    Tuscan Winter        4    59.0    2    0.50     6.0   88    92           92    +4
3    Admiral Dooley       3    58.5    3    1.30     8.5   88    84           84    -4
4    Back To Black        4    60.5    4    3.50     6.0   91    91           91    +0
5    Coming In Hot        3    52.0    5    4.30     8.5   74    68           68    -6
6    Tyrus Express        6    58.5    6    4.55     0.0   87    98           98    +11
7    Captain Chorus       5    58.0    7    5.80     0.0   86    97           97    +11
8    Lulu's Boy           5    52.0    8    9.10     0.0   70    85           85    +15
99   Little Prince        3    58.5    99   0.00     8.5   -     81           81    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Another Level 87 86 87 -1 8.5 -
2 Tuscan Winter 88 90 92 -2 6.0 -
3 Admiral Dooley 88 84 84 ✓ Match 8.5 -
4 Back To Black Line 91 89 91 -2 6.0
5 Coming In Hot 74 76 68 +8 8.5 -
6 Tyrus Express 87 62 98 -36 0.0 -
7 Captain Chorus 86 67 97 -30 0.0 -
8 Lulu's Boy 70 71 85 -14 0.0 -
99 Little Prince - 73 81 -8 8.5 -
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