Official NHA Assessment

Race 7: BETWAY AVIATOR PINNACLE STAKES (For all horses)

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Line Horse
Sheldon
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
6 / 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    Mover And Shaker     5    56.0    1    0.00     0.0   107   108          108   +1
2    Chyavana             3    52.0    2    1.90     8.5   98    83           88    -10
3    Sheldon              6    60.0    3    3.80     0.0   116   116          116   +0
4    Iphiko               3    52.5    4    3.90     8.5   105   84           95    -10
5    Mercantour           5    60.0    5    4.30     0.0   116   116          116   +0
6    Danilo Danilovitch   3    56.0    6    4.35     8.5   108   91           98    -10
7    Cold Fact            3    58.5    7    5.85     8.5   115   96           105   -10
99   Tread Swiftly        4    54.0    99   0.00     10.0  -     84           84    +0
99   Moonshiningthrough   3    50.5    99   0.00     8.5   -     80           80    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mover And Shaker 107 109 108 +1 0.0 -
2 Chyavana 98 106 88 +18 8.5 -
3 Sheldon Line 116 106 116 -10 0.0
4 Iphiko 105 111 95 +16 8.5 -
5 Mercantour 116 113 116 -3 0.0 -
6 Danilo Danilovitch 108 89 98 -9 8.5 -
7 Cold Fact 115 109 105 +4 8.5 -
99 Tread Swiftly - 90 84 +6 10.0 -
99 Moonshiningthrough - 96 80 +16 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