Official NHA Assessment

Race 1: JEHCOM GROUP MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Bao La
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
8 / 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    Getoffofmycloud      3    59.0    1    0.00     7.5   -     64           6     +6
2    Jeanne Darc          3    59.0    2    0.25     7.5   -     64           64    +64
3    Sonata Samaritan     3    59.0    3    1.30     7.5   -     64           64    +64
4    Bao La               3    60.0    4    2.40     7.5   66    66           66    +0
5    Predator's Suprise   3    59.0    5    3.40     7.5   -     64           64    +64
6    Dynasty's Last       5    60.0    6    3.65     0.0   53    81           81    +28
7    Shiny Silva          3    60.0    7    7.85     7.5   50    66           66    +16
8    Queen Of Ice         3    59.0    8    10.75    7.5   64    64           64    +0
99   Lady Of Vix          2    59.0    99   0.00     5.0   -     69           69    +0
99   Miss Mayfly          3    59.0    99   0.00     7.5   -     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 Getoffofmycloud - 66 6 +60 7.5 -
2 Jeanne Darc - 83 64 +19 7.5 -
3 Sonata Samaritan - 74 64 +10 7.5 -
4 Bao La Line 66 63 66 -3 7.5
5 Predator's Suprise - 56 64 -8 7.5 -
6 Dynasty's Last 53 61 81 -20 0.0 -
7 Shiny Silva 50 42 66 -24 7.5 -
8 Queen Of Ice 64 60 64 -4 7.5 -
99 Lady Of Vix - 80 69 +11 5.0 -
99 Miss Mayfly - 53 64 -11 7.5 -
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