Official NHA Assessment

Race 6: RACEHORSE OWNERS ASSOCIATION FM 82 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Herrin
Reference for assessment
Exact Matches
2 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
6 / 10
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    Freedom Seeker (AUS  5    59.0    1    0.00     0.0   85    90           85    +0
2    French Joy           3    52.0    2    0.50     4.5   72    67           67    -5
3    Herrin               4    59.0    3    1.25     5.0   80    80           80    +0
4    Shine A Light        4    57.0    4    2.00     5.0   76    76           76    +0
5    Bad Habit            5    58.5    5    2.10     0.0   79    89           89    +10
6    Red Berry            4    57.5    6    2.20     5.0   77    77           77    +0
7    Lollapalooza         3    61.5    7    2.70     4.5   91    86           86    -5
8    Sofia Erin           4    52.0    8    6.70     5.0   66    66           66    +0
9    Mendocino            5    54.0    9    7.45     0.0   70    80           80    +10
10   Tallahassee          4    60.5    10   99.98    5.0   83    83           83    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Freedom Seeker (AUS) 85 93 85 +8 0.0 -
2 French Joy 72 61 67 -6 4.5 -
3 Herrin Line 80 77 80 -3 5.0
4 Shine A Light 76 71 76 -5 5.0 -
5 Bad Habit 79 75 89 -14 0.0 -
6 Red Berry 77 95 77 +18 5.0 -
7 Lollapalooza 91 74 86 -12 4.5 -
8 Sofia Erin 66 66 66 ✓ Match 5.0 -
9 Mendocino 70 59 80 -21 0.0 -
10 Tallahassee 83 83 83 ✓ Match 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