Official NHA Assessment

Race 4: ST LAZARE MAIDEN HANDICAP (For Maidens with 3 or more runs)

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Line Horse
Empress Game
Reference for assessment
Exact Matches
1 / 14
Calculated = Official
Close Matches
3 / 14
Within 2 points
Significant Diffs
7 / 14
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    Activator            3    56.0    1    0.00     10.5  62    62           62    +0
2    Cotton Ron           6    55.0    2    0.15     0.0   60    81           81    +21
3    Empress Game         3    59.0    3    1.65     10.5  68    68           68    +0
4    Caberneigh           3    57.0    4    5.65     10.5  64    64           64    +0
5    Teerex               4    57.0    5    5.70     12.0  78    61           68    -10
6    Mighty Rain          3    52.0    6    6.60     10.5  50    54           54    +4
7    Zin Zan Dan          2    52.0    7    8.50     7.0   50    61           61    +11
8    Potent Captain       4    56.0    8    8.60     12.0  76    59           66    -10
9    Almond Butter        2    52.5    9    8.70     7.0   69    62           62    -7
10   Sir William          3    60.0    10   9.00     10.5  70    70           70    +0
11   Drinks All Round     2    52.0    11   16.80    7.0   63    61           61    -2
12   Basie Raakvat        4    48.0    12   19.10    12.0  20    43           43    +23
99   Splendid Fella       2    49.0    99   0.00     7.0   -     55           55    +0
99   Victor Rail          5    60.0    99   0.00     0.0   -     91           91    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Activator 62 66 62 +4 10.5 -
2 Cotton Ron 60 59 81 -22 0.0 -
3 Empress Game Line 68 61 68 -7 10.5
4 Caberneigh 64 61 64 -3 10.5 -
5 Teerex 78 66 68 -2 12.0 -
6 Mighty Rain 50 46 54 -8 10.5 -
7 Zin Zan Dan 50 64 61 +3 7.0 -
8 Potent Captain 76 54 66 -12 12.0 -
9 Almond Butter 69 65 62 +3 7.0 -
10 Sir William 70 59 70 -11 10.5 -
11 Drinks All Round 63 63 61 +2 7.0 -
12 Basie Raakvat 20 63 43 +20 12.0 -
99 Splendid Fella - 55 55 ✓ Match 7.0 -
99 Victor Rail - 61 91 -30 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