Official NHA Assessment

Race 2: KM RACING STABLES MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

Back to Race
Line Horse
La Pequenita
Reference for assessment
Exact Matches
1 / 6
Calculated = Official
Close Matches
2 / 6
Within 2 points
Significant Diffs
4 / 6
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    La Pequenita         3    60.0    1    0.00     9.0   63    63           63    +0
2    Vintage Crystal      2    60.0    2    1.25     0.0   60    85           85    +25
3    Sundrop              6    58.5    3    3.75     0.0   53    79           79    +26
4    Accumulate           4    60.0    4    7.50     7.0   56    67           67    +11
5    Double Trade         2    57.0    5    16.25    0.0   70    75           75    +5
99   Tartan Queen         2    54.5    99   0.00     0.0   -     70           70    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 La Pequenita Line 63 62 63 -1 9.0
2 Vintage Crystal 60 59 85 -26 0.0 -
3 Sundrop 53 48 79 -31 0.0 -
4 Accumulate 56 50 67 -17 7.0 -
5 Double Trade 70 67 75 -8 0.0 -
99 Tartan Queen - 70 70 ✓ Match 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