Official NHA Assessment

Race 5: HeartFM FM 74 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Alittlebitnaughty
Reference for assessment
Exact Matches
2 / 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    Desert Rose          3    60.5    1    0.00     6.0   75    66           75    +0
2    Alittlebitnaughty    4    58.0    2    2.25     3.0   70    70           70    +0
3    Royal Invitation     5    56.0    3    2.30     0.0   78    71           71    -7
4    Enchanted Creek      5    54.5    4    4.05     0.0   63    67           67    +4
5    Call It Fate         3    57.0    5    4.15     6.0   68    60           60    -8
6    Cruizin California   3    56.5    6    4.65     6.0   67    58           58    -9
7    Cattaleya            2    58.0    7    4.85     0.0   82    73           73    -9
8    Broadway Girl        5    59.5    8    5.35     0.0   85    76           76    -9
9    Priceless            3    58.0    9    5.45     6.0   82    61           72    -10
10   Raising Quinn        3    60.0    10   5.85     6.0   74    65           65    -9
11   Jazzbella            2    58.0    11   12.10    0.0   82    73           73    -9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Desert Rose 75 75 75 ✓ Match 6.0 -
2 Alittlebitnaughty Line 70 62 70 -8 3.0
3 Royal Invitation 78 99 71 +28 0.0 -
4 Enchanted Creek 63 60 67 -7 0.0 -
5 Call It Fate 68 61 60 +1 6.0 -
6 Cruizin California 67 50 58 -8 6.0 -
7 Cattaleya 82 67 73 -6 0.0 -
8 Broadway Girl 85 89 76 +13 0.0 -
9 Priceless 82 72 72 ✓ Match 6.0 -
10 Raising Quinn 74 69 65 +4 6.0 -
11 Jazzbella 82 67 73 -6 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