Official NHA Assessment

Race 7: TAB 4RACING APP MR 96 HANDICAP (Open)

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Line Horse
Wecangoallnight
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
4 / 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    Dubai Hills          4    58.5    1    0.00     3.5   93    83           93    +0
2    Nelson Bay           4    56.0    2    0.10     3.5   88    78           78    -10
3    Eyjafjallajokull     2    56.5    3    1.60     0.0   88    89           89    +1
4    Wecangoallnight      2    59.5    4    1.70     0.0   95    95           95    +0
5    Golden Link          3    62.0    5    2.95     6.0   100   87           90    -10
6    Final Try            2    59.0    6    3.45     0.0   94    92           92    -2
7    King's Ransom        4    57.0    7    4.95     3.5   90    80           80    -10
8    Champonelle          4    57.0    8    7.45     3.5   90    80           80    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dubai Hills 93 95 93 +2 3.5 -
2 Nelson Bay 88 90 78 +12 3.5 -
3 Eyjafjallajokull 88 86 89 -3 0.0 -
4 Wecangoallnight Line 95 95 95 ✓ Match 0.0
5 Golden Link 100 99 90 +9 6.0 -
6 Final Try 94 94 92 +2 0.0 -
7 King's Ransom 90 89 80 +9 3.5 -
8 Champonelle 90 87 80 +7 3.5 -
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