Official NHA Assessment

Race 5: RACEHORSE OWNERS ASSOCIATION 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
6 / 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    Jaeger Moon          7    59.5    1    0.00     0.0   97    96           96    -1
2    Jacob's Ladder       4    55.5    2    4.00     1.0   83    88           88    +5
3    Herodotus            6    59.5    3    4.75     0.0   96    96           96    +0
4    Marmara Sea          5    62.0    4    8.00     0.0   108   101          101   -7
5    Princess Of Fire     4    49.0    5    8.10     1.0   74    73           73    -1
6    Assured              4    52.0    6    14.60    1.0   75    79           79    +4
7    Ancient Times        4    58.0    7    16.85    1.0   95    91           91    -4
8    Palo Alto            7    53.5    8    26.35    0.0   79    84           84    +5
99   Divine Odyssey       7    62.0    99   0.00     0.0   -     101          101   +0
99   Super Noir           4    52.0    99   0.00     1.0   -     79           79    +0
99   Take The World       5    52.0    99   0.00     0.0   -     81           81    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jaeger Moon 97 97 96 +1 0.0 -
2 Jacob's Ladder 83 73 88 -15 1.0 -
3 Herodotus Line 96 102 96 +6 0.0
4 Marmara Sea 108 101 101 ✓ Match 0.0 -
5 Princess Of Fire 74 75 73 +2 1.0 -
6 Assured 75 76 79 -3 1.0 -
7 Ancient Times 95 95 91 +4 1.0 -
8 Palo Alto 79 77 84 -7 0.0 -
99 Divine Odyssey - 107 101 +6 0.0 -
99 Super Noir - 66 79 -13 1.0 -
99 Take The World - 55 81 -26 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