Official NHA Assessment

Race 1: 4RACING WELCOMES YOU JUVENILE PLATE (For 2 yo R100 000 Win CRS Bonus)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
6 / 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    Taxi To The Moon     3    60.0    1    0.00     1.5   -     -            -     +0
2    Karate Kid           3    57.0    2    1.50     1.5   -     -            -     +0
3    Key News             2    60.0    3    2.90     0.5   -     -            -     +0
4    Moonlight Trader     2    60.0    4    4.00     0.5   -     -            -     +0
5    Obsidian             3    57.0    5    8.00     1.5   -     -            -     +0
6    Kia Kaha             3    57.5    6    9.25     1.5   -     -            -     +0
99   Copper Cliff         2    57.0    99   0.00     0.5   -     -            -     +0
99   Towers Of Gold       3    57.0    99   0.00     1.5   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Taxi To The Moon - 119 - +119 1.5 -
2 Karate Kid - 103 - +103 1.5 -
3 Key News - 81 - +81 0.5 -
4 Moonlight Trader - 101 - +101 0.5 -
5 Obsidian - 97 - +97 1.5 -
6 Kia Kaha - 71 - +71 1.5 -
99 Copper Cliff - 75 - - 0.5 -
99 Towers Of Gold - 93 - - 1.5 -
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