Official NHA Assessment

Race 3: GREYVILLE CONVENTION CENTRE MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

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Line Horse
Nonoti
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
8 / 9
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    Jollification        3    60.0    1    0.00     2.5   67    64           64    -3
2    Sky Velocity         5    60.0    2    1.40     0.0   65    72           72    +7
3    Nonoti               2    58.5    3    2.60     0.0   68    68           68    +0
4    Trip To Nebraska     2    60.0    4    2.85     0.0   68    71           71    +3
5    Queen Jackson        3    60.0    5    3.25     2.5   50    66           66    +16
6    Fiery Filly          3    60.0    6    5.35     2.5   -     64           64    +64
7    Lady Is A Champ      2    60.0    7    5.75     0.0   59    69           69    +10
8    Expressivity         2    60.0    8    8.45     0.0   60    69           69    +9
99   Free Will            3    60.0    99   0.00     2.5   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jollification 67 77 64 +13 2.5 -
2 Sky Velocity 65 57 72 -15 0.0 -
3 Nonoti Line 68 57 68 -11 0.0
4 Trip To Nebraska 68 55 71 -16 0.0 -
5 Queen Jackson 50 50 66 -16 2.5 -
6 Fiery Filly - 60 64 -4 2.5 -
7 Lady Is A Champ 59 57 69 -12 0.0 -
8 Expressivity 60 55 69 -14 0.0 -
99 Free Will - 49 64 -15 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