Official NHA Assessment

Race 6: LAISSERFAIRE STAKES (Listed) (Fillies and Mares Handicap for 3-year-old and older)

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Line Horse
Santa Maria
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
7 / 10
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Kwinta's Light       3    59.0    1    0.00     7.5   102   102          102   +0
2    Stiptelik (AUS)      3    53.5    2    0.75     7.5   90    91           91    +1
3    Santa Maria          3    61.0    3    1.25     7.5   106   106          106   +0
4    Whoa Whoa Whoa (AUS  3    58.5    4    1.65     7.5   101   101          101   +0
5    Going Up             3    57.0    5    1.75     7.5   98    98           98    +0
6    Dancetildaylight     3    58.0    6    2.05     7.5   100   100          100   +0
7    Oscar's Winner       4    56.0    7    3.30     9.0   96    93           93    -3
8    Totally Rocks        2    52.0    8    3.35     5.0   90    93           93    +3
9    Sonic Burst          4    54.0    9    3.55     9.0   92    89           89    -3
10   Ancient Epic         3    53.5    10   3.65     7.5   91    91           91    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kwinta's Light 102 109 102 +7 7.5 -
2 Stiptelik (AUS) 90 104 91 +13 7.5 -
3 Santa Maria Line 106 106 106 ✓ Match 7.5
4 Whoa Whoa Whoa (AUS) 101 108 101 +7 7.5 -
5 Going Up 98 110 98 +12 7.5 -
6 Dancetildaylight 100 92 100 -8 7.5 -
7 Oscar's Winner 96 91 93 -2 9.0 -
8 Totally Rocks 90 81 93 -12 5.0 -
9 Sonic Burst 92 81 89 -8 9.0 -
10 Ancient Epic 91 88 91 -3 7.5 -
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