Official NHA Assessment

Race 2: 3YO MALE EIGHT ON EIGHTEEN & 3YO FEMALE MON PETIT CHERIE MAIDEN PLATE (For all Maidens)

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Line Horse
Siriano
Reference for assessment
Exact Matches
2 / 11
Calculated = Official
Close Matches
4 / 11
Within 2 points
Significant Diffs
6 / 11
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    Viva's Liberte       3    58.0    1    0.00     8.5   -     60           6     +6
2    Greenchoice          2    58.0    2    2.00     0.0   -     80           80    +80
3    Siriano              2    58.0    3    4.25     0.0   78    78           78    +0
4    Balzi Rossi          2    56.5    4    6.25     0.0   82    74           74    -8
5    Miami Summer         3    58.0    5    6.35     8.5   -     60           60    +60
6    Royal Clinton        2    58.0    6    7.10     0.0   78    77           77    -1
7    Clark Griswold       3    58.0    7    7.85     8.5   -     60           60    +60
8    Quicksmart           2    58.0    8    11.85    0.0   -     77           77    +77
9    Galactus             3    60.0    9    11.95    8.5   65    64           64    -1
10   Tomahawk Bill        2    58.0    10   12.95    0.0   -     77           77    +77
11   Ready For The Road   3    58.0    11   13.35    8.5   -     60           60    +60
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Viva's Liberte - 114 6 +108 8.5 -
2 Greenchoice - 80 80 ✓ Match 0.0 -
3 Siriano Line 78 80 78 +2 0.0
4 Balzi Rossi 82 76 74 +2 0.0 -
5 Miami Summer - 85 60 +25 8.5 -
6 Royal Clinton 78 66 77 -11 0.0 -
7 Clark Griswold - 85 60 +25 8.5 -
8 Quicksmart - 74 77 -3 0.0 -
9 Galactus 65 64 64 ✓ Match 8.5 -
10 Tomahawk Bill - 50 77 -27 0.0 -
11 Ready For The Road - 68 60 +8 8.5 -
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