Official NHA Assessment

Race 1: 4RACING WELCOMES YOU CONDITIONS PLATE (F & M) (For Fillies and Mares)

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Line Horse
Sheela
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
4 / 6
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    Sheela               3    56.0    1    0.00     3.5   117   117          117   +0
2    Sweet Pepper         2    51.5    2    4.25     2.5   111   110          110   -1
3    Vivacious Spirit     2    50.0    3    5.50     2.5   89    107          107   +18
4    May Queen            5    60.0    4    9.75     0.0   93    132          132   +39
5    Ode To The Ocean     2    48.5    5    10.00    2.5   93    104          104   +11
6    Show Time            2    50.0    6    99.99    2.5   75    107          107   +32
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sheela Line 117 121 117 +4 3.5
2 Sweet Pepper 111 105 110 -5 2.5 -
3 Vivacious Spirit 89 78 107 -29 2.5 -
4 May Queen 93 90 132 -42 0.0 -
5 Ode To The Ocean 93 62 104 -42 2.5 -
6 Show Time 75 75 107 -32 2.5 -
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