Official NHA Assessment

Race 6: WILGERBOSDRIFT SA FILLIES CLASSIC (Grade 1) (3yof (2nd Leg Wilgerbosdrift SA Triple Tiara))

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Line Horse
Sprinkles
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
8 / 10
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    Rain In Holland      3    60.0    1    0.00     4.5   115   108          108   -7
2    Sprinkles            3    60.0    2    3.25     4.5   110   110          110   +0
3    Perfect Witness      3    60.0    3    3.50     4.5   103   109          109   +6
4    Desert Miracle       3    60.0    4    4.50     4.5   117   108          108   -9
5    Definitely Maybe     3    60.0    5    6.00     4.5   79    108          108   +29
6    Follow Me            3    60.0    6    7.00     4.5   102   108          108   +6
7    Eternity Ring        3    60.0    7    7.25     4.5   105   108          108   +3
8    Look Yourself        3    60.0    8    8.50     4.5   88    108          108   +20
9    Clafoutis            3    60.0    9    12.00    4.5   105   108          108   +3
99   Supreme Quest        3    60.0    99   0.00     4.5   -     108          108   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rain In Holland 115 120 108 +12 4.5 -
2 Sprinkles Line 110 105 110 -5 4.5
3 Perfect Witness 103 105 109 -4 4.5 -
4 Desert Miracle 117 124 108 +16 4.5 -
5 Definitely Maybe 79 97 108 -11 4.5 -
6 Follow Me 102 94 108 -14 4.5 -
7 Eternity Ring 105 80 108 -28 4.5 -
8 Look Yourself 88 94 108 -14 4.5 -
9 Clafoutis 105 96 108 -12 4.5 -
99 Supreme Quest - 92 108 -16 4.5 -
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