Official NHA Assessment

Race 6: GALLOP TV CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 82)

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Line Horse
Sonata Samaritan
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
5 / 13
Within 2 points
Significant Diffs
3 / 13
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    Grand Occasion       2    59.0    1    0.00     0.0   80    89           86    +6
2    Blue Poppy           3    56.5    2    0.25     4.0   83    76           76    -7
3    Pretty Kara          3    55.0    3    0.75     4.0   80    77           77    -3
4    Thought Control      3    54.5    4    2.45     4.0   79    74           74    -5
5    Sonata Samaritan     3    54.5    5    2.60     4.0   74    74           74    +0
6    Ms Galore            3    54.5    6    3.30     4.0   70    73           73    +3
7    Overnight            3    55.5    7    3.35     4.0   81    75           75    -6
8    Rani Tarabai         3    60.0    8    3.65     4.0   82    84           84    +2
9    Lady Sabrina         3    59.0    9    4.85     4.0   83    81           81    -2
10   Sign Of Fate         4    58.5    10   4.90     2.0   79    84           84    +5
11   Prom Queen           3    59.5    11   5.20     4.0   81    82           82    +1
12   Jeanne Darc          3    61.0    12   6.25     4.0   84    85           85    +1
99   Deepest Water        3    53.0    99   0.00     4.0   -     69           69    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Grand Occasion 80 85 86 -1 0.0 -
2 Blue Poppy 83 84 76 +8 4.0 -
3 Pretty Kara 80 80 77 +3 4.0 -
4 Thought Control 79 79 74 +5 4.0 -
5 Sonata Samaritan Line 74 74 74 ✓ Match 4.0
6 Ms Galore 70 68 73 -5 4.0 -
7 Overnight 81 79 75 +4 4.0 -
8 Rani Tarabai 82 80 84 -4 4.0 -
9 Lady Sabrina 83 82 81 +1 4.0 -
10 Sign Of Fate 79 74 84 -10 2.0 -
11 Prom Queen 81 81 82 -1 4.0 -
12 Jeanne Darc 84 83 85 -2 4.0 -
99 Deepest Water - 76 69 +7 4.0 -
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