Official NHA Assessment

Race 7: 4RACING SYCAMORE SPRINT (Grade 3) (For Fillies and Mares)

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Line Horse
Chrome Tourmaline
Reference for assessment
Exact Matches
1 / 16
Calculated = Official
Close Matches
5 / 16
Within 2 points
Significant Diffs
6 / 16
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    Mia Moo              4    59.5    1    0.00     4.0   103   103          103   +0
2    Komati River         3    52.0    2    0.50     3.5   80    89           89    +9
3    Chrome Tourmaline    4    58.0    3    1.90     4.0   100   100          100   +0
4    Elegant Ice          4    62.0    4    2.65     4.0   108   108          108   +0
5    Almond Sea           3    61.5    5    3.55     3.5   112   108          108   -4
6    Calantha             4    52.0    6    6.35     4.0   87    88           88    +1
7    Callmewhenuneedme    4    58.5    7    7.95     4.0   101   101          101   +0
8    Hierkommiebokkie     5    58.0    8    8.35     0.0   100   108          108   +8
9    Wings Within Me      4    53.0    9    10.35    4.0   90    90           90    +0
10   Sorceress Supreme    3    56.0    10   12.05    3.5   101   97           97    -4
11   Exchange Student     4    60.5    11   14.35    4.0   105   105          105   +0
12   The Navy Lark        4    52.0    12   14.55    4.0   77    88           88    +11
99   Night Vigil          4    54.0    99   0.00     4.0   -     92           92    +0
99   Andi's Girl          4    56.0    99   0.00     4.0   -     96           96    +0
99   Poblano              3    59.0    99   0.00     3.5   -     103          103   +0
99   Bosum Buddy          3    52.0    99   0.00     3.5   -     89           89    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mia Moo 103 119 103 +16 4.0 -
2 Komati River 80 93 89 +4 3.5 -
3 Chrome Tourmaline Line 100 107 100 +7 4.0
4 Elegant Ice 108 108 108 ✓ Match 4.0 -
5 Almond Sea 112 119 108 +11 3.5 -
6 Calantha 87 95 88 +7 4.0 -
7 Callmewhenuneedme 101 97 101 -4 4.0 -
8 Hierkommiebokkie 100 90 108 -18 0.0 -
9 Wings Within Me 90 88 90 -2 4.0 -
10 Sorceress Supreme 101 98 97 +1 3.5 -
11 Exchange Student 105 104 105 -1 4.0 -
12 The Navy Lark 77 74 88 -14 4.0 -
99 Night Vigil - 91 92 -1 4.0 -
99 Andi's Girl - 93 96 -3 4.0 -
99 Poblano - 100 103 -3 3.5 -
99 Bosum Buddy - 85 89 -4 3.5 -
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