Official NHA Assessment

Race 7: KWAZULU-NATAL BREEDERS MILE (For KZN bred 3-year-old and older (Non-Blk Type))

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Line Horse
Willow Express
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
7 / 8
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    Nexus                6    57.5    1    0.00     0.0   107   101          101   -6
2    Battle Force         4    60.0    2    0.75     0.5   118   109          109   -9
3    Willow Express       7    57.0    3    1.50     0.0   103   103          103   +0
4    Artic Tune           4    57.0    4    3.00     0.5   82    101          101   +19
5    Bold Act             3    53.0    5    4.00     1.5   103   90           93    -10
6    Flashy Apache        6    55.5    6    4.15     0.0   84    98           98    +14
7    King's Crusade       4    57.0    7    4.45     0.5   84    99           99    +15
8    Chijmes              6    57.0    8    5.15     0.0   94    100          100   +6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Nexus 107 122 101 +21 0.0 -
2 Battle Force 118 109 109 ✓ Match 0.5 -
3 Willow Express Line 103 82 103 -21 0.0
4 Artic Tune 82 81 101 -20 0.5 -
5 Bold Act 103 77 93 -16 1.5 -
6 Flashy Apache 84 78 98 -20 0.0 -
7 King's Crusade 84 81 99 -18 0.5 -
8 Chijmes 94 94 100 -6 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