Official NHA Assessment

Race 6: TAB 4RACING APP FM 77 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Plumbago Park
Reference for assessment
Exact Matches
1 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
4 / 8
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    Gaslight Dancer      2    58.0    1    0.00     3.5   80    80           80    +0
2    There She Goes       6    58.5    2    0.05     0.0   77    88           88    +11
3    Plumbago Park        2    58.0    3    1.55     3.5   80    80           80    +0
4    Tempranillo          2    58.0    4    1.85     3.5   80    80           80    +0
5    Deal Maker (GB)      3    60.0    5    4.65     5.0   77    81           81    +4
6    Queen's Pact         2    55.0    6    5.45     3.5   74    74           74    +0
7    Amazonian            2    58.5    7    5.95     3.5   81    81           81    +0
99   Executrix            2    60.0    99   0.00     3.5   -     84           84    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Gaslight Dancer 80 85 80 +5 3.5 -
2 There She Goes 77 77 88 -11 0.0 -
3 Plumbago Park Line 80 72 80 -8 3.5
4 Tempranillo 80 80 80 ✓ Match 3.5 -
5 Deal Maker (GB) 77 77 81 -4 5.0 -
6 Queen's Pact 74 69 74 -5 3.5 -
7 Amazonian 81 73 81 -8 3.5 -
99 Executrix - 77 84 -7 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