Official NHA Assessment

Race 6: HACHIMAN SPRINT (Open/ 4th Leg Sprinter Series)

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Line Horse
Kallipos
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
5 / 7
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    Tom's Diner          4    52.5    1    0.00     6.0   71    69           69    -2
2    Hildelita            4    60.0    2    0.50     6.0   86    84           84    -2
3    Red Top              5    55.0    3    1.50     0.0   76    86           86    +10
4    Kallipos             3    54.0    4    2.00     5.0   74    74           74    +0
5    Jubilee              7    59.5    5    4.50     0.0   85    95           95    +10
6    Force Eight          3    58.0    6    8.50     5.0   89    82           82    -7
99   Queen Of Fire        3    53.5    99   0.00     5.0   -     73           73    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tom's Diner 71 94 69 +25 6.0 -
2 Hildelita 86 76 84 -8 6.0 -
3 Red Top 76 70 86 -16 0.0 -
4 Kallipos Line 74 63 74 -11 5.0
5 Jubilee 85 72 95 -23 0.0 -
6 Force Eight 89 77 82 -5 5.0 -
99 Queen Of Fire - 71 73 -2 5.0 -
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