Official NHA Assessment

Race 2: TAB TELEBET 0861 000 822 MAIDEN PLATE (3 year-olds) (For Maiden 3 year-olds)

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Line Horse
Karate Kid
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
6 / 7
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    Karate Kid           3    60.0    1    0.00     10.5  -     -            -     +0
2    Inspector James      3    60.0    2    1.50     10.5  -     -            -     +0
3    Busstopinhounslow    3    60.0    3    2.50     10.5  -     -            -     +0
4    Kwagga Blitz         2    60.0    4    4.75     7.0   84    7            74    -10
5    Potberrie            2    60.0    5    5.00     7.0   83    7            73    -10
6    Rawalpindi           2    57.5    6    12.25    7.0   62    2            52    -10
99   Ignitethelight       3    57.5    99   0.00     10.5  -     -5           -5    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Karate Kid Line - 103 - +103 10.5
2 Inspector James - 73 - +73 10.5 -
3 Busstopinhounslow - 110 - +110 10.5 -
4 Kwagga Blitz 84 79 74 +5 7.0 -
5 Potberrie 83 105 73 +32 7.0 -
6 Rawalpindi 62 62 52 +10 7.0 -
99 Ignitethelight - 74 -5 +79 10.5 -
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