Official NHA Assessment

Race 4: CELEBRATING CENTURION MEMBER KEN TRUTER'S BIRTHDAY MAIDEN PLATE (For all Maidens)

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Line Horse
Water Dragon
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
3 / 13
Within 2 points
Significant Diffs
5 / 13
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    Etoilefillante       4    60.0    1    0.00     7.0   71    56           56    -15
2    Water Dragon         2    60.0    2    2.00     0.0   73    73           73    +0
3    Gripen               4    60.0    3    3.25     7.0   66    58           58    -8
4    Champonelle          4    60.0    4    3.55     7.0   74    57           64    -10
5    Dreamalittledream    3    60.0    5    4.05     9.0   -     53           53    +53
6    Bomber Bay           2    57.0    6    4.25     0.0   71    65           65    -6
7    Jack In The Green    2    60.0    7    5.25     0.0   75    70           70    -5
8    White Seahorse       2    57.0    8    6.50     0.0   -     64           64    +64
9    Twentytwentyvision   2    60.0    9    7.75     0.0   71    70           70    -1
10   Fly In Style         3    60.0    10   11.25    9.0   -     52           52    +52
11   World Soprano        2    57.0    11   14.25    0.0   -     64           64    +64
12   Chalice Fort         2    57.0    12   14.65    0.0   -     64           64    +64
99   City Of Port Louis   2    57.0    99   0.00     0.0   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Etoilefillante 71 51 56 -5 7.0 -
2 Water Dragon Line 73 70 73 -3 0.0
3 Gripen 66 58 58 ✓ Match 7.0 -
4 Champonelle 74 87 64 +23 7.0 -
5 Dreamalittledream - 66 53 +13 9.0 -
6 Bomber Bay 71 60 65 -5 0.0 -
7 Jack In The Green 75 80 70 +10 0.0 -
8 White Seahorse - 81 64 +17 0.0 -
9 Twentytwentyvision 71 80 70 +10 0.0 -
10 Fly In Style - 48 52 -4 9.0 -
11 World Soprano - 65 64 +1 0.0 -
12 Chalice Fort - 60 64 -4 0.0 -
99 City Of Port Louis - 63 64 -1 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