Official NHA Assessment

Race 5: WORLD SPORTS BETTING HIGHLAND NIGHT CUP (For all horses)

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Line Horse
Imperial Ruby
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
4 / 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    Imperial Ruby        5    60.0    1    0.00     0.0   104   104          104   +0
2    Decorated            4    54.0    2    0.70     1.5   84    95           95    +11
3    Rex Union            4    52.5    3    1.10     1.5   80    91           91    +11
4    Salvator Mundi       4    58.5    4    5.10     1.5   100   98           98    -2
5    Spring Fling         6    57.0    5    8.40     0.0   91    98           98    +7
6    Extract              3    50.0    6    99.99    4.5   65    75           75    +10
99   Mystery Boy          4    52.5    99   0.00     1.5   -     86           86    +0
99   Catch The Tune       6    50.0    99   0.00     0.0   -     84           84    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Imperial Ruby Line 104 105 104 +1 0.0
2 Decorated 84 96 95 +1 1.5 -
3 Rex Union 80 97 91 +6 1.5 -
4 Salvator Mundi 100 98 98 ✓ Match 1.5 -
5 Spring Fling 91 96 98 -2 0.0 -
6 Extract 65 60 75 -15 4.5 -
99 Mystery Boy - 80 86 -6 1.5 -
99 Catch The Tune - 70 84 -14 0.0 -
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