Official NHA Assessment

Race 5: RACEHORSE OWNERS ASSOCIATION FM 85 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Special Charm
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
4 / 9
Within 2 points
Significant Diffs
4 / 9
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    Donna Mo             2    59.5    1    0.00     0.0   91    89           91    +0
2    Poorlittlerichgirl   3    59.5    2    0.20     3.5   84    82           82    -2
3    Special Charm        3    56.5    3    1.70     3.5   81    81           81    +0
4    Ariel's Jet          3    53.5    4    2.95     3.5   79    73           73    -6
5    I Am Regal           5    57.5    5    3.45     0.0   80    88           88    +8
6    Quiet Rebellion      3    56.5    6    5.20     3.5   78    76           76    -2
7    Be Real              2    56.0    7    6.20     0.0   83    82           82    -1
8    Opera Glass          4    60.0    8    7.45     1.5   85    87           87    +2
99   Terra Time           3    65.5    99   0.00     3.5   -     94           94    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Donna Mo 91 89 91 -2 0.0 -
2 Poorlittlerichgirl 84 84 82 +2 3.5 -
3 Special Charm Line 81 104 81 +23 3.5
4 Ariel's Jet 79 69 73 -4 3.5 -
5 I Am Regal 80 75 88 -13 0.0 -
6 Quiet Rebellion 78 74 76 -2 3.5 -
7 Be Real 83 71 82 -11 0.0 -
8 Opera Glass 85 81 87 -6 1.5 -
99 Terra Time - 96 94 +2 3.5 -
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