Official NHA Assessment

Race 1: #THISISRACING WELCOMES YOU JUVENILE PLATE (For 2 year-olds)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
4 / 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    Quantum Theory       5    60.0    1    0.00     0.0   -     -            -     +0
2    Acorn                2    60.0    2    2.25     0.0   -     -            -     +0
3    Intoxicating         2    54.0    3    2.35     0.0   -     -            -     +0
4    Global Breeze        2    57.0    4    10.75    0.0   -     -            -     +0
99   Tamarisk Tree        5    57.0    99   0.00     0.0   -     -            -     +0
99   Home Of The Brave    2    57.0    99   0.00     0.0   -     -            -     +0
99   Slinky Mapimpi       5    57.0    99   0.00     0.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Quantum Theory - 112 - +112 0.0 -
2 Acorn - 89 - +89 0.0 -
3 Intoxicating - 75 - +75 0.0 -
4 Global Breeze - 75 - +75 0.0 -
99 Tamarisk Tree - 105 - - 0.0 -
99 Home Of The Brave - 97 - - 0.0 -
99 Slinky Mapimpi - 101 - - 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