Official NHA Assessment

Race 4: RACING TODAY PINNACLE STAKES (F & M) (For Fillies and Mares)

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Line Horse
Luna Halo
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
7 / 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    And We Danced        3    62.0    1    0.00     2.0   103   104          104   +1
2    Luna Halo            4    62.0    2    0.10     1.0   106   106          106   +0
3    Chere For Me         5    58.0    3    3.35     0.0   89    101          101   +12
4    Treasure Hunt        6    55.0    4    3.60     0.0   79    95           95    +16
5    Pinnacle             2    59.5    5    7.10     0.0   95    103          103   +8
6    Time For Glory       2    55.0    6    7.85     0.0   76    94           94    +18
7    Crimson Princess     4    59.5    7    7.90     1.0   95    101          101   +6
8    Lady Majorca         4    55.5    8    15.15    1.0   85    93           93    +8
9    Definitely Maybe     3    61.0    9    22.40    2.0   97    102          102   +5
99   Sister Light         3    61.0    99   0.00     2.0   -     102          102   +0
99   Silvery Blue         3    55.0    99   0.00     2.0   -     90           90    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 And We Danced 103 103 104 -1 2.0 -
2 Luna Halo Line 106 106 106 ✓ Match 1.0
3 Chere For Me 89 70 101 -31 0.0 -
4 Treasure Hunt 79 80 95 -15 0.0 -
5 Pinnacle 95 93 103 -10 0.0 -
6 Time For Glory 76 77 94 -17 0.0 -
7 Crimson Princess 95 102 101 +1 1.0 -
8 Lady Majorca 85 62 93 -31 1.0 -
9 Definitely Maybe 97 97 102 -5 2.0 -
99 Sister Light - 96 102 -6 2.0 -
99 Silvery Blue - 79 90 -11 2.0 -
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