Official NHA Assessment

Race 8: BETWAY MR 106 HANDICAP (Open)

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Line Horse
Birthright
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 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    Skittles Skies       3    52.5    1    0.00     8.0   87    86           87    +0
2    Aladdin's Lamp       4    53.5    2    1.60     4.5   93    98           98    +5
3    Birthright           4    50.0    3    2.85     4.5   90    90           90    +0
4    Mastership           2    55.0    4    3.95     0.0   96    108          108   +12
5    Flashy Apache        6    52.0    5    6.15     0.0   89    101          101   +12
6    Pioneer Square       3    53.0    6    8.05     8.0   96    87           87    -9
7    Diwali Rocket        3    52.0    7    21.55    8.0   89    85           85    -4
8    Taegan's Champ       3    60.0    8    26.75    8.0   106   101          101   -5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Skittles Skies 87 96 87 +9 8.0 -
2 Aladdin's Lamp 93 106 98 +8 4.5 -
3 Birthright Line 90 95 90 +5 4.5
4 Mastership 96 105 108 -3 0.0 -
5 Flashy Apache 89 78 101 -23 0.0 -
6 Pioneer Square 96 101 87 +14 8.0 -
7 Diwali Rocket 89 89 85 +4 8.0 -
8 Taegan's Champ 106 103 101 +2 8.0 -
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