Official NHA Assessment

Race 2: LaLiga MAIDEN PLATE (For all Maidens)

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Line Horse
Power Star
Reference for assessment
Exact Matches
0 / 15
Calculated = Official
Close Matches
0 / 15
Within 2 points
Significant Diffs
13 / 15
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    Kyomai               4    56.0    1    0.00     0.5   -     63           6     +6
2    Petteia              2    56.0    2    0.80     0.0   -     68           68    +68
3    Power Star           2    58.5    3    1.10     0.0   73    73           73    +0
4    Cosmic Rhythm        2    56.0    4    1.30     0.0   -     67           67    +67
5    Aberdeen             2    56.0    5    2.10     0.0   -     67           67    +67
6    Giants Castle        4    60.0    6    2.90     0.5   62    73           73    +11
7    Navajo Nation        4    56.0    7    3.30     0.5   -     64           64    +64
8    Kitty Mo             2    53.0    8    4.10     0.0   -     59           59    +59
9    Explosive Speed      2    56.0    9    4.35     0.0   -     64           64    +64
10   House Of Romanov     2    56.0    10   4.75     0.0   -     64           64    +64
11   Seattlegreenlight    2    60.0    11   7.25     0.0   68    72           72    +4
12   Captain Marsala      2    54.5    12   11.75    0.0   -     61           61    +61
13   The Noah             2    56.0    13   11.80    0.0   -     64           64    +64
14   Excalibur Calls      2    60.0    14   11.85    0.0   67    72           72    +5
99   Divine Power         3    60.0    99   0.00     1.0   -     70           70    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kyomai - 70 6 +64 0.5 -
2 Petteia - 50 68 -18 0.0 -
3 Power Star Line 73 58 73 -15 0.0
4 Cosmic Rhythm - 59 67 -8 0.0 -
5 Aberdeen - 74 67 +7 0.0 -
6 Giants Castle 62 64 73 -9 0.5 -
7 Navajo Nation - 104 64 +40 0.5 -
8 Kitty Mo - 69 59 +10 0.0 -
9 Explosive Speed - 68 64 +4 0.0 -
10 House Of Romanov - 81 64 +17 0.0 -
11 Seattlegreenlight 68 60 72 -12 0.0 -
12 Captain Marsala - 68 61 +7 0.0 -
13 The Noah - 68 64 +4 0.0 -
14 Excalibur Calls 67 62 72 -10 0.0 -
99 Divine Power - 41 70 -29 1.0 -
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