Official NHA Assessment

Race 4: COMPUTAFORM ONLINE MAIDEN HANDICAP (F & M) (For Maiden F & M with 3 or more runs)

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Line Horse
Blue Eyed Girl
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
3 / 7
Within 2 points
Significant Diffs
4 / 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    Parisienne Girl      3    56.5    1    0.00     2.5   63    61           63    +0
2    Blue Eyed Girl       3    58.5    2    3.25     2.5   67    67           67    +0
3    Wayward Girl         3    60.0    3    3.35     2.5   70    69           69    -1
4    Short Sharp Shock    3    53.5    4    4.60     2.5   57    55           55    -2
5    Babyitscoldoutside   3    55.0    5    4.90     2.5   60    58           58    -2
6    Bite My Lip          4    54.5    6    5.65     1.5   53    59           59    +6
7    Anywhichway          3    59.0    7    6.65     2.5   68    66           66    -2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Parisienne Girl 63 62 63 -1 2.5 -
2 Blue Eyed Girl Line 67 67 67 ✓ Match 2.5
3 Wayward Girl 70 56 69 -13 2.5 -
4 Short Sharp Shock 57 62 55 +7 2.5 -
5 Babyitscoldoutside 60 56 58 -2 2.5 -
6 Bite My Lip 53 49 59 -10 1.5 -
7 Anywhichway 68 59 66 -7 2.5 -
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