Official NHA Assessment

Race 2: #YOUCANBETONUS! MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Plumbago Park
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
0 / 12
Within 2 points
Significant Diffs
7 / 12
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    Manyeleti            3    59.0    1    0.00     7.5   -     72           6     +6
2    Plumbago Park        2    59.0    2    3.00     5.0   77    77           77    +0
3    Varachino's Champ    3    57.5    3    8.40     7.5   -     69           69    +69
4    Kortvandraad         3    60.0    4    11.20    7.5   65    74           74    +9
5    Master's Lady        2    59.0    5    12.20    5.0   81    77           77    -4
6    Emerald Forge        2    59.0    6    13.00    5.0   81    77           77    -4
7    Dondoyaki            2    59.0    7    13.75    5.0   80    77           77    -3
8    Fire Within          3    59.0    8    15.25    7.5   -     72           72    +72
9    Mystical Butterfly   3    56.5    9    20.00    7.5   -     67           67    +67
10   Duchess Of Cognac    3    57.5    10   23.20    7.5   -     69           69    +69
11   Erebus               2    59.0    11   23.50    5.0   72    77           77    +5
99   Gaslight Dancer      2    59.0    99   0.00     5.0   -     77           77    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Manyeleti - 93 6 +87 7.5 -
2 Plumbago Park Line 77 72 77 -5 5.0
3 Varachino's Champ - 75 69 +6 7.5 -
4 Kortvandraad 65 71 74 -3 7.5 -
5 Master's Lady 81 70 77 -7 5.0 -
6 Emerald Forge 81 72 77 -5 5.0 -
7 Dondoyaki 80 74 77 -3 5.0 -
8 Fire Within - 52 72 -20 7.5 -
9 Mystical Butterfly - 72 67 +5 7.5 -
10 Duchess Of Cognac - 20 69 -49 7.5 -
11 Erebus 72 66 77 -11 5.0 -
99 Gaslight Dancer - 85 77 +8 5.0 -
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