Official NHA Assessment

Race 5: BUY 4 SUMMER GARDEN TICKETS ONLY PAY FOR 3 MIDDLE STAKES (For All Horses)

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Line Horse
Douglas Dragon
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
7 / 10
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    Dance King           2    52.5    1    0.00     0.0   85    94           91    +6
2    Douglas Dragon       3    52.0    2    1.25     8.0   83    83           83    +0
3    Battleground         5    56.0    3    1.45     0.0   92    106          106   +14
4    Kudzu                2    54.0    4    4.75     0.0   87    97           97    +10
5    Royal Edition        4    56.0    5    5.15     4.5   91    92           92    +1
6    Flashy Apache        6    52.0    6    5.95     0.0   85    93           93    +8
7    Arumugam             6    50.0    7    6.00     0.0   81    89           89    +8
8    Vesuvio              5    54.0    8    7.30     0.0   88    97           97    +9
9    Imperial Master      4    54.5    9    14.00    4.5   90    89           89    -1
99   Hotarubi             4    62.0    99   0.00     4.5   -     104          104   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dance King 85 89 91 -2 0.0 -
2 Douglas Dragon Line 83 89 83 +6 8.0
3 Battleground 92 92 106 -14 0.0 -
4 Kudzu 87 80 97 -17 0.0 -
5 Royal Edition 91 92 92 ✓ Match 4.5 -
6 Flashy Apache 85 78 93 -15 0.0 -
7 Arumugam 81 74 89 -15 0.0 -
8 Vesuvio 88 85 97 -12 0.0 -
9 Imperial Master 90 90 89 +1 4.5 -
99 Hotarubi - 98 104 -6 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