Official NHA Assessment

Race 7: LADY'S SLIPPER STAKES (Listed) (For 2 year-old Fillies)

Back to Race
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
10 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Luna Halo            4    60.0    1    0.00     0.5   -     -            -     +0
2    Idita                4    60.0    2    2.25     0.5   -     -            -     +0
3    Joy And Peace        4    60.0    3    3.75     0.5   -     -            -     +0
4    Summer Odyssey       2    60.0    4    3.85     0.0   -     -            -     +0
5    Golden Sickle        4    60.0    5    4.10     0.5   -     -            -     +0
6    Public Benefit       2    60.0    6    5.35     0.0   -     -            -     +0
7    Marshmallow          4    60.0    7    6.85     0.5   -     -            -     +0
8    Jambo Sana           2    60.0    8    9.85     0.0   -     -            -     +0
9    Global Rush          2    60.0    9    11.10    0.0   -     -            -     +0
10   Successful Lady      2    60.0    10   14.35    0.0   -     -            -     +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Luna Halo - 106 - +106 0.5 -
2 Idita - 79 - +79 0.5 -
3 Joy And Peace - 110 - +110 0.5 -
4 Summer Odyssey - 84 - +84 0.0 -
5 Golden Sickle - 121 - +121 0.5 -
6 Public Benefit - 86 - +86 0.0 -
7 Marshmallow - 72 - +72 0.5 -
8 Jambo Sana - 74 - +74 0.0 -
9 Global Rush - 82 - +82 0.0 -
10 Successful Lady - 56 - +56 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