Official NHA Assessment

Race 7: MEMORIAL MILE (Listed) (For all horses at Weight for age + Penalties)

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Line Horse
Marmara Sea
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
8 / 12
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    Grazinginthegrass    4    59.0    1    0.00     7.0   104   87           87    -17
2    Nexus                6    59.0    2    1.00     0.0   107   105          105   -2
3    My Bestie            7    59.0    3    1.25     0.0   100   105          105   +5
4    Marmara Sea          5    60.0    4    1.35     0.0   106   106          106   +0
5    You Know Who         3    58.5    5    2.60     9.0   92    84           84    -8
6    Peace In Our World   6    59.5    6    3.35     0.0   90    103          103   +13
7    Jaeger Moon          7    59.0    7    5.10     0.0   102   101          101   -1
8    Safari Blue          3    59.5    8    5.35     9.0   99    84           89    -10
9    Ferrari Ice          4    59.0    9    5.85     7.0   93    87           87    -6
10   Stone Cold           4    59.0    10   8.85     7.0   95    87           87    -8
11   Tarantino            4    59.0    11   9.10     7.0   95    87           87    -8
12   Christopher Robin    5    59.0    12   16.35    0.0   111   101          101   -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Grazinginthegrass 104 111 87 +24 7.0 -
2 Nexus 107 122 105 +17 0.0 -
3 My Bestie 100 61 105 -44 0.0 -
4 Marmara Sea Line 106 101 106 -5 0.0
5 You Know Who 92 91 84 +7 9.0 -
6 Peace In Our World 90 89 103 -14 0.0 -
7 Jaeger Moon 102 97 101 -4 0.0 -
8 Safari Blue 99 91 89 +2 9.0 -
9 Ferrari Ice 93 102 87 +15 7.0 -
10 Stone Cold 95 94 87 +7 7.0 -
11 Tarantino 95 96 87 +9 7.0 -
12 Christopher Robin 111 106 101 +5 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