Official NHA Assessment

Race 2: GREYVILLE CONVENTION CENTRE MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

Back to Race
Line Horse
Quentasia
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
9 / 9
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Status Quo           3    57.0    1    0.00     8.0   -     68           6     +6
2    Arctic Commander     2    57.0    2    1.60     0.0   75    87           87    +12
3    Quentasia            4    57.0    3    3.40     5.0   75    75           75    +0
4    Kyniska              3    60.0    4    3.45     8.0   60    75           75    +15
5    An Air Of Pride      2    57.0    5    7.35     0.0   68    84           84    +16
6    Rio Guard            3    57.0    6    10.15    8.0   -     68           68    +68
7    Ladies Day           3    60.0    7    10.25    8.0   58    74           74    +16
8    Bella Dutchesse      4    56.0    8    19.05    5.0   -     72           72    +72
99   Satin In Seattle     3    60.0    99   0.00     8.0   -     74           74    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Status Quo - 58 6 +52 8.0 -
2 Arctic Commander 75 73 87 -14 0.0 -
3 Quentasia Line 75 58 75 -17 5.0
4 Kyniska 60 61 75 -14 8.0 -
5 An Air Of Pride 68 68 84 -16 0.0 -
6 Rio Guard - 56 68 -12 8.0 -
7 Ladies Day 58 56 74 -18 8.0 -
8 Bella Dutchesse - 35 72 -37 5.0 -
99 Satin In Seattle - 45 74 -29 8.0 -
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