Official NHA Assessment

Race 7: OFF THE RAILS FM 90 HANDICAP (F & M) (For Fillies and Mares)

Back to Race
Line Horse
Purple Persuasion
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
3 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Sultanah             5    53.5    1    0.00     0.0   77    73           77    +0
2    Jacqueline           6    54.5    2    0.05     0.0   79    75           75    -4
3    Purple Persuasion    5    56.0    3    0.85     0.0   82    82           82    +0
4    Meet At The George   5    58.0    4    3.05     0.0   86    84           84    -2
5    Drama Queen          5    57.0    5    3.10     0.0   84    82           82    -2
6    Twicethequality      4    57.0    6    3.25     2.5   84    77           77    -7
7    Sacred Blues         5    54.5    7    3.45     0.0   79    76           76    -3
8    All Aglow            4    52.5    8    3.75     2.5   75    67           67    -8
9    Chanty Lane          4    55.0    9    4.85     2.5   85    71           75    -10
10   Another Love         4    57.5    10   4.95     2.5   93    76           83    -10
11   Fire Faerie          5    50.5    11   5.15     0.0   73    67           67    -6
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sultanah 77 59 77 -18 0.0 -
2 Jacqueline 79 83 75 +8 0.0 -
3 Purple Persuasion Line 82 82 82 ✓ Match 0.0
4 Meet At The George 86 89 84 +5 0.0 -
5 Drama Queen 84 84 82 +2 0.0 -
6 Twicethequality 84 80 77 +3 2.5 -
7 Sacred Blues 79 76 76 ✓ Match 0.0 -
8 All Aglow 75 71 67 +4 2.5 -
9 Chanty Lane 85 83 75 +8 2.5 -
10 Another Love 93 79 83 -4 2.5 -
11 Fire Faerie 73 70 67 +3 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