Official NHA Assessment

Race 4: TAB 4RACING APP MR 85 HANDICAP (Open)

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Line Horse
Banyan
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
7 / 7
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    Constellation        2    60.5    1    0.00     5.0   96    101          96    +0
2    Xenophon             3    58.5    2    2.40     7.5   82    92           92    +10
3    Banyan               3    57.0    3    2.80     7.5   89    89           89    +0
4    Top Division         2    59.0    4    2.90     5.0   93    98           98    +5
5    Abound               4    58.0    5    3.10     9.0   81    88           88    +7
6    Ready Set Fire       2    57.5    6    4.30     5.0   80    95           95    +15
7    Queen's Pact         2    49.0    7    8.80     5.0   81    78           78    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Constellation 96 114 96 +18 5.0 -
2 Xenophon 82 83 92 -9 7.5 -
3 Banyan Line 89 83 89 -6 7.5
4 Top Division 93 90 98 -8 5.0 -
5 Abound 81 77 88 -11 9.0 -
6 Ready Set Fire 80 69 95 -26 5.0 -
7 Queen's Pact 81 69 78 -9 5.0 -
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