Official NHA Assessment

Race 1: TABGOLD SCORE 10 SCORE 8 MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

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Line Horse
Head Girl
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 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    Ladybug              3    60.0    1    0.00     2.0   -     54           6     +6
2    Head Girl            5    60.0    2    1.80     0.0   58    58           58    +0
3    Like A Butterfly     3    60.0    3    2.10     2.0   68    54           58    -10
4    Take Your Time       3    57.0    4    11.40    2.0   -     48           48    +48
5    Chef's Kiss          4    60.0    5    13.50    2.5   -     53           53    +53
6    Grande Rosalie       3    60.0    6    15.20    2.0   -     54           54    +54
99   Jet Lavish           3    57.0    99   0.00     2.0   -     48           48    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ladybug - 80 6 +74 2.0 -
2 Head Girl Line 58 62 58 +4 0.0
3 Like A Butterfly 68 54 58 -4 2.0 -
4 Take Your Time - 60 48 +12 2.0 -
5 Chef's Kiss - 46 53 -7 2.5 -
6 Grande Rosalie - 48 54 -6 2.0 -
99 Jet Lavish - 80 48 +32 2.0 -
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