Official NHA Assessment

Race 7: BOOK A TABLE CALL 011 681 1796 MIDDLE STAKES (For horses with nett rating of 101 and below)

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Line Horse
Flowerbomb
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
8 / 9
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    Trompie              2    60.0    1    0.00     1.0   98    101          101   +3
2    Flowerbomb           2    60.5    2    1.50     1.0   102   102          102   +0
3    Super Agra           4    54.0    3    1.75     2.5   83    86           86    +3
4    Big Eyed Girl        3    56.5    4    2.25     2.0   90    92           92    +2
5    May Queen            5    56.5    5    2.35     0.0   93    96           96    +3
6    Constable            5    60.0    6    3.00     0.0   96    103          103   +7
7    Midnight Gem         4    58.5    7    5.75     2.5   97    95           95    -2
8    Vegas Hi Rise        6    58.0    8    8.00     0.0   90    99           99    +9
99   Smith And Wesson     2    56.0    99   0.00     1.0   -     93           93    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Trompie 98 107 101 +6 1.0 -
2 Flowerbomb Line 102 87 102 -15 1.0
3 Super Agra 83 60 86 -26 2.5 -
4 Big Eyed Girl 90 96 92 +4 2.0 -
5 May Queen 93 90 96 -6 0.0 -
6 Constable 96 95 103 -8 0.0 -
7 Midnight Gem 97 81 95 -14 2.5 -
8 Vegas Hi Rise 90 71 99 -28 0.0 -
99 Smith And Wesson - 73 93 -20 1.0 -
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