Official NHA Assessment

Race 6: SABLE FLYERS (LR) (Fillies and Mares)

Back to Race
Line Horse
Varnica
Reference for assessment
Exact Matches
0 / 6
Calculated = Official
Close Matches
0 / 6
Within 2 points
Significant Diffs
6 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Emerald Floe         4    59.5    1    0.00     4.5   83    72           72    -11
2    Varnica              5    59.0    2    2.50     0.0   82    82           82    +0
3    Obscure              4    58.0    3    7.50     4.5   80    69           70    -10
4    Ian's Ferrari        3    52.0    4    12.50    7.0   61    52           52    -9
99   Keen Spirit          3    53.5    99   0.00     7.0   -     55           55    +0
99   Masaaken (AUS)       4    62.0    99   0.00     4.5   -     77           77    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Emerald Floe 83 82 72 +10 4.5 -
2 Varnica Line 82 90 82 +8 0.0
3 Obscure 80 87 70 +17 4.5 -
4 Ian's Ferrari 61 63 52 +11 7.0 -
99 Keen Spirit - 71 55 +16 7.0 -
99 Masaaken (AUS) - 92 77 +15 4.5 -
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