Official NHA Assessment

Race 2: RACING TODAY MAIDEN PLATE (F & M) (For Maiden F & M.)

Back to Race
Line Horse
Lacewing
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
8 / 9
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Silver Parasol       3    57.0    1    0.00     9.0   79    81           78    -1
2    Lacewing             3    57.0    2    2.75     9.0   83    83           83    +0
3    Kuramathi            2    57.0    3    5.50     0.0   -     99           99    +99
4    Quello Che           3    54.5    4    8.50     9.0   75    76           76    +1
5    Path Fairy           4    60.0    5    12.75    7.0   52    91           91    +39
6    Messalina            3    57.0    6    13.75    9.0   79    81           81    +2
7    Blue Velvet          2    57.0    7    14.50    0.0   67    99           99    +32
8    Spirit In The Wind   4    60.0    8    17.50    7.0   50    91           91    +41
9    Paradise Flower      3    60.0    9    19.50    9.0   45    87           87    +42
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Silver Parasol 79 79 78 +1 9.0 -
2 Lacewing Line 83 71 83 -12 9.0
3 Kuramathi - 76 99 -23 0.0 -
4 Quello Che 75 61 76 -15 9.0 -
5 Path Fairy 52 50 91 -41 7.0 -
6 Messalina 79 71 81 -10 9.0 -
7 Blue Velvet 67 60 99 -39 0.0 -
8 Spirit In The Wind 50 60 91 -31 7.0 -
9 Paradise Flower 45 37 87 -50 9.0 -
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