Official NHA Assessment

Race 1: 4RACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

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Line Horse
Lady Fallon
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
7 / 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    Lady Fallon          4    57.0    1    0.00     6.0   -     -            -     +0
2    Lorna Lilly          3    60.0    2    2.25     8.5   50    4            40    -10
3    City Lights          4    57.0    3    9.75     6.0   -     -            -     +0
4    Ideal Heart          3    60.0    4    14.25    8.5   56    1            46    -10
5    Three Bells          3    60.0    5    14.30    8.5   50    1            40    -10
6    Play With Fire       4    57.0    6    16.50    6.0   78    -            73    -5
7    Shivas Spirit        3    60.0    7    21.75    8.5   38    1            28    -10
8    Impression           3    60.0    8    23.00    8.5   54    1            44    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lady Fallon Line - 100 - +100 6.0
2 Lorna Lilly 50 50 40 +10 8.5 -
3 City Lights - 52 - +52 6.0 -
4 Ideal Heart 56 54 46 +8 8.5 -
5 Three Bells 50 43 40 +3 8.5 -
6 Play With Fire 78 79 73 +6 6.0 -
7 Shivas Spirit 38 36 28 +8 8.5 -
8 Impression 54 51 44 +7 8.5 -
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