Official NHA Assessment

Race 6: BETWAY BOOST RACEHORSE OWNERS ASSOCIATION PLATE (3 year olds)

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Line Horse
Fairy Knight
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    Underworld           2    60.0    1    0.00     0.0   105   102          102   -3
2    Fairy Knight         4    60.0    2    0.10     4.5   93    93           93    +0
3    The Winter Lake      4    58.0    3    3.35     4.5   88    90           90    +2
4    The Charioteer       2    58.0    4    3.40     0.0   75    99           99    +24
4    Lord Milori          2    58.0    4    3.40     0.0   83    99           99    +16
6    Empire Blue          4    58.0    6    4.65     4.5   77    89           89    +12
7    Big Fella            2    58.0    7    8.90     0.0   80    98           98    +18
8    Global Banker        4    58.0    8    11.40    4.5   79    89           89    +10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Underworld 105 111 102 +9 0.0 -
2 Fairy Knight Line 93 118 93 +25 4.5
3 The Winter Lake 88 87 90 -3 4.5 -
4 The Charioteer 75 71 99 -28 0.0 -
4 Lord Milori 83 64 99 -35 0.0 -
6 Empire Blue 77 71 89 -18 4.5 -
7 Big Fella 80 70 98 -28 0.0 -
8 Global Banker 79 55 89 -34 4.5 -
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