Official NHA Assessment

Race 5: BETWAY AVIATOR MR 86 HANDICAP (Open)

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Line Horse
Fostinovo
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
9 / 11
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    Emporium             2    53.5    1    0.00     0.0   93    87           93    +0
2    Houston              3    56.0    2    0.10     8.5   79    75           75    -4
3    Fostinovo            3    60.0    3    1.20     8.5   87    87           87    +0
4    Arividicio           5    58.0    4    1.40     0.0   83    99           99    +16
5    Global Impact        2    60.5    5    3.90     0.0   88    102          102   +14
6    Pinch Hit            2    56.5    6    5.80     0.0   80    93           93    +13
7    Rattle Bag           6    57.5    7    6.05     0.0   81    95           95    +14
8    Mo Jive              2    58.5    8    6.10     0.0   84    97           97    +13
9    Clarkson             4    60.0    9    8.40     6.0   86    88           88    +2
10   Juliet Tango         6    62.5    10   13.40    0.0   91    105          105   +14
99   Rain Or Shine        4    56.0    99   0.00     6.0   -     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 Emporium 93 89 93 -4 0.0 -
2 Houston 79 69 75 -6 8.5 -
3 Fostinovo Line 87 80 87 -7 8.5
4 Arividicio 83 50 99 -49 0.0 -
5 Global Impact 88 74 102 -28 0.0 -
6 Pinch Hit 80 74 93 -19 0.0 -
7 Rattle Bag 81 71 95 -24 0.0 -
8 Mo Jive 84 78 97 -19 0.0 -
9 Clarkson 86 75 88 -13 6.0 -
10 Juliet Tango 91 81 105 -24 0.0 -
99 Rain Or Shine - 82 80 +2 6.0 -
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