Official NHA Assessment

Race 4: GENUINE ENNION SYNDICATE MAIDEN PLATE (For all Maidens)

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Line Horse
Bourbon King
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
5 / 9
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    Bourbon King         3    60.0    1    0.00     2.5   75    75           75    +0
2    Royal Influencer     3    60.0    2    3.25     2.5   73    77           77    +4
3    Sparkling Sky        3    56.5    3    3.55     2.5   70    69           69    -1
4    Masteronthemoon      2    60.0    4    4.30     0.0   73    80           80    +7
5    Capranica            2    57.5    5    7.80     0.0   62    75           75    +13
6    Royal Celeb          2    60.0    6    9.05     0.0   -     80           80    +80
7    Conditionally        2    60.0    7    9.45     0.0   65    80           80    +15
8    Brigadier Billy      3    60.0    8    21.45    2.5   72    75           75    +3
9    Undoubted The Boy    3    60.0    9    99.99    2.5   54    75           75    +21
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bourbon King Line 75 75 75 ✓ Match 2.5
2 Royal Influencer 73 73 77 -4 2.5 -
3 Sparkling Sky 70 70 69 +1 2.5 -
4 Masteronthemoon 73 73 80 -7 0.0 -
5 Capranica 62 62 75 -13 0.0 -
6 Royal Celeb - - 80 -80 0.0 -
7 Conditionally 65 65 80 -15 0.0 -
8 Brigadier Billy 72 72 75 -3 2.5 -
9 Undoubted The Boy 54 54 75 -21 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