Official NHA Assessment

Race 8: NEW TURF CARRIERS VP QUARANTINE STATION FM 74 HANDICAP (F & M) (For Fillies and Mares)

Back to Race
Line Horse
Duchess Of Gold
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
8 / 12
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Crazy Blues          3    60.0    1    0.00     1.0   74    69           74    +0
2    Duchess Of Gold      2    57.5    2    0.30     0.0   71    71           71    +0
3    Gelsomina            3    52.0    3    1.20     1.0   56    57           57    +1
4    Miss Lialah          4    52.0    4    1.40     0.5   53    57           57    +4
5    Malcolm's Dream      6    57.0    5    2.10     0.0   68    68           68    +0
6    Jazz Diva            3    58.5    6    2.40     1.0   73    68           68    -5
7    She's Not Easy       2    58.0    7    3.10     0.0   75    69           69    -6
8    Perfect Trust        7    58.5    8    4.20     0.0   71    69           69    -2
9    Devils And Dust      2    59.0    9    4.50     0.0   74    69           69    -5
10   Rain Wear            4    58.0    10   5.10     0.5   70    66           66    -4
11   Feeling Groovy       2    61.0    11   8.80     0.0   78    73           73    -5
99   Hot Strike           7    52.0    99   0.00     0.0   -     55           55    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Crazy Blues 74 78 74 +4 1.0 -
2 Duchess Of Gold Line 71 62 71 -9 0.0
3 Gelsomina 56 55 57 -2 1.0 -
4 Miss Lialah 53 65 57 +8 0.5 -
5 Malcolm's Dream 68 88 68 +20 0.0 -
6 Jazz Diva 73 70 68 +2 1.0 -
7 She's Not Easy 75 75 69 +6 0.0 -
8 Perfect Trust 71 50 69 -19 0.0 -
9 Devils And Dust 74 52 69 -17 0.0 -
10 Rain Wear 70 73 66 +7 0.5 -
11 Feeling Groovy 78 60 73 -13 0.0 -
99 Hot Strike - 59 55 +4 0.0 -
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