Official NHA Assessment

Race 6: 4RACING.TV MR 68 HANDICAP (Open)

Line Horse
Lulu's Boy
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
6 / 12
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    After Hours          7    55.5    1    0.00     0.0   59    59           59    +0
2    Defender Of Rights   3    60.5    2    0.05     3.0   69    63           63    -6
3    Lulu's Boy           5    57.5    3    1.10     0.0   63    63           63    +0
4    Conker The World     4    56.5    4    3.25     3.5   61    54           54    -7
5    Meet The Captain     4    53.5    5    4.75     3.5   55    48           48    -7
6    Feather The Nest     4    55.0    6    5.25     3.5   58    51           51    -7
7    Written In Stone     9    55.5    7    6.00     0.0   64    59           59    -5
8    Magic Flower         2    55.0    8    6.50     2.0   62    54           54    -8
9    Bird In Space        2    58.0    9    16.50    2.0   68    60           60    -8
99   Maboneng             3    54.0    99   0.00     3.0   -     50           50    +0
99   Silk Garden          3    57.0    99   0.00     3.0   -     56           56    +0
99   Smelting             7    56.5    99   0.00     0.0   -     61           61    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 After Hours 59 79 59 +20 0.0 -
2 Defender Of Rights 69 67 63 +4 3.0 -
3 Lulu's Boy Line 63 71 63 +8 0.0
4 Conker The World 61 57 54 +3 3.5 -
5 Meet The Captain 55 52 48 +4 3.5 -
6 Feather The Nest 58 54 51 +3 3.5 -
7 Written In Stone 64 67 59 +8 0.0 -
8 Magic Flower 62 52 54 -2 2.0 -
9 Bird In Space 68 66 60 +6 2.0 -
99 Maboneng - 67 50 +17 3.0 -
99 Silk Garden - 56 56 ✓ Match 3.0 -
99 Smelting - 52 61 -9 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