Official NHA Assessment

Race 9: DOUBLE SUPERLATIVE KWAZULU-NATAL BREEDERS 1600 (For all KZN Breeders Series Qualifying Horses (Non-Blk Type))

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Line Horse
Willow Express
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
6 / 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    Lucky Dollar         2    56.0    1    0.00     0.0   70    72           72    +2
2    Actor                2    59.0    2    0.40     0.0   85    83           83    -2
3    Willow Express       7    60.0    3    0.65     0.0   85    85           85    +0
4    Joshua Hotsnake      3    56.0    4    0.80     1.5   69    73           73    +4
5    The Gliding Fish     6    57.0    5    1.05     0.0   74    78           78    +4
6    Vila Vicosa          3    56.0    6    1.85     1.5   74    72           72    -2
6    Peace Treaty         3    59.0    6    1.85     1.5   84    78           78    -6
8    Rodriguez            6    56.0    8    1.90     0.0   71    75           75    +4
9    Run To Rio           4    56.0    9    3.30     0.5   68    72           72    +4
10   Radu                 5    55.0    10   3.50     0.0   72    71           71    -1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lucky Dollar 70 85 72 +13 0.0 -
2 Actor 85 85 83 +2 0.0 -
3 Willow Express Line 85 82 85 -3 0.0
4 Joshua Hotsnake 69 67 73 -6 1.5 -
5 The Gliding Fish 74 68 78 -10 0.0 -
6 Vila Vicosa 74 74 72 +2 1.5 -
6 Peace Treaty 84 69 78 -9 1.5 -
8 Rodriguez 71 69 75 -6 0.0 -
9 Run To Rio 68 71 72 -1 0.5 -
10 Radu 72 64 71 -7 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