Official NHA Assessment

Race 8: CHAMPION BREEDER: VARSFONTEIN STUD FM 80 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Quantum
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
4 / 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    Warning Sound        3    58.5    1    0.00     1.5   80    71           80    +0
2    Boom Boom            4    58.5    2    0.90     0.5   77    77           77    +0
3    Quantum              5    56.5    3    3.00     0.0   72    72           72    +0
4    Future Date          2    58.5    4    3.50     0.0   80    75           75    -5
5    Play With Fire       4    59.5    5    4.60     0.5   79    75           75    -4
6    Rattle Bag           6    57.5    6    5.40     0.0   75    72           72    -3
7    The Mightiest        3    58.5    7    5.90     1.5   80    71           71    -9
8    Messalina            3    54.5    8    8.15     1.5   75    63           65    -10
9    Gregarious           3    61.0    9    8.90     1.5   85    76           76    -9
10   Flamboyant Flyer     4    58.5    10   25.50    0.5   77    73           73    -4
99   Glamorous Lady       2    61.5    99   0.00     0.0   -     80           80    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Warning Sound 80 90 80 +10 1.5 -
2 Boom Boom 77 81 77 +4 0.5 -
3 Quantum Line 72 67 72 -5 0.0
4 Future Date 80 93 75 +18 0.0 -
5 Play With Fire 79 79 75 +4 0.5 -
6 Rattle Bag 75 71 72 -1 0.0 -
7 The Mightiest 80 70 71 -1 1.5 -
8 Messalina 75 71 65 +6 1.5 -
9 Gregarious 85 83 76 +7 1.5 -
10 Flamboyant Flyer 77 77 73 +4 0.5 -
99 Glamorous Lady - 76 80 -4 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