Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING WEDNESDAY 5 NOVEMBER CLASSIFIED STAKES (For horses with nett rating of 74 and below)

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Line Horse
Blackberry Breeze
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
4 / 12
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    Golden Angel         3    56.0    1    0.00     8.0   68    60           60    -8
2    Blackberry Breeze    4    58.0    2    4.25     5.0   71    71           71    +0
3    Cheerful Charlie B   3    58.0    3    4.75     8.0   68    64           64    -4
4    Sun Spectacular      4    58.0    4    6.00     5.0   74    70           70    -4
5    Flash Lightning      4    55.5    5    6.25     5.0   69    65           65    -4
6    Rock Of Futura       2    56.0    6    6.50     0.0   80    76           76    -4
7    Strange Magic        5    58.5    7    8.75     0.0   73    81           81    +8
8    Tower Of London      2    54.0    8    8.85     0.0   76    72           72    -4
9    Golden Grey          4    58.0    9    9.10     5.0   69    70           70    +1
10   Canford Queen        3    48.5    10   10.60    8.0   60    45           50    -10
99   Tokyo Medaglia       3    58.0    99   0.00     8.0   -     64           64    +0
99   King Viserys         4    60.0    99   0.00     5.0   -     74           74    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Golden Angel 68 72 60 +12 8.0 -
2 Blackberry Breeze Line 71 71 71 ✓ Match 5.0
3 Cheerful Charlie B 68 61 64 -3 8.0 -
4 Sun Spectacular 74 69 70 -1 5.0 -
5 Flash Lightning 69 69 65 +4 5.0 -
6 Rock Of Futura 80 72 76 -4 0.0 -
7 Strange Magic 73 69 81 -12 0.0 -
8 Tower Of London 76 70 72 -2 0.0 -
9 Golden Grey 69 64 70 -6 5.0 -
10 Canford Queen 60 59 50 +9 8.0 -
99 Tokyo Medaglia - 68 64 +4 8.0 -
99 King Viserys - 73 74 -1 5.0 -
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