Official NHA Assessment

Race 4: PLAY SOCCER 6, 10 AND 13 PINNACLE STAKES (Open to all horses)

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Line Horse
Herodotus
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
7 / 11
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    Ferrari Ice          4    55.0    1    0.00     0.5   87    83           83    -4
2    Grazinginthegrass    4    61.0    2    0.75     0.5   104   99           99    -5
3    Marmara Sea          5    62.0    3    0.85     0.0   107   102          102   -5
4    Greenlighttoheaven   4    58.5    4    1.35     0.5   93    93           93    +0
5    Herodotus            6    59.5    5    1.85     0.0   96    96           96    +0
6    Atkinson Grimshaw    4    52.0    6    2.35     0.5   78    79           79    +1
7    Falling For You      5    53.5    7    4.60     0.0   76    81           81    +5
8    Legitimate           4    58.0    8    7.35     0.5   95    89           89    -6
9    Guru's Pride         5    55.5    9    8.10     0.0   82    85           85    +3
10   Jaeger Moon          7    61.0    10   8.15     0.0   102   96           96    -6
99   Christopher Robin    5    62.0    99   0.00     0.0   -     98           98    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ferrari Ice 87 102 83 +19 0.5 -
2 Grazinginthegrass 104 111 99 +12 0.5 -
3 Marmara Sea 107 101 102 -1 0.0 -
4 Greenlighttoheaven 93 83 93 -10 0.5 -
5 Herodotus Line 96 102 96 +6 0.0
6 Atkinson Grimshaw 78 75 79 -4 0.5 -
7 Falling For You 76 74 81 -7 0.0 -
8 Legitimate 95 89 89 ✓ Match 0.5 -
9 Guru's Pride 82 70 85 -15 0.0 -
10 Jaeger Moon 102 97 96 +1 0.0 -
99 Christopher Robin - 106 98 +8 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