Official NHA Assessment

Race 3: WWW.TAB4RACING.COM PINNACLE STAKES (F & M) (For Fillies and Mares)

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Line Horse
Enchanting Choice
Reference for assessment
Exact Matches
2 / 6
Calculated = Official
Close Matches
2 / 6
Within 2 points
Significant Diffs
2 / 6
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    Family Power         4    56.5    1    0.00     1.0   87    93           93    +6
2    Enchanting Choice    4    59.5    2    0.05     1.0   99    99           99    +0
3    Avernian Goddess     3    58.0    3    0.55     2.0   91    99           99    +8
4    Splicethemainbrace   3    62.0    4    2.55     2.0   108   104          104   -4
5    Montelena            4    58.5    5    3.30     1.0   90    98           98    +8
6    Royal City Girl      2    56.5    6    4.05     0.0   93    96           96    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Family Power 87 93 93 ✓ Match 1.0 -
2 Enchanting Choice Line 99 99 99 ✓ Match 1.0
3 Avernian Goddess 91 91 99 -8 2.0 -
4 Splicethemainbrace 108 108 104 +4 2.0 -
5 Montelena 90 90 98 -8 1.0 -
6 Royal City Girl 93 93 96 -3 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