Official NHA Assessment

Race 6: REMEMBERING JANE THOMAS CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 80)

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Line Horse
Kamchatka
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
8 / 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    Jet To The Sun       4    56.0    1    0.00     3.0   72    88           78    +6
2    Kamchatka            3    59.5    2    2.75     6.0   91    91           91    +0
3    Kamakazi             4    60.0    3    3.05     3.0   80    98           98    +18
4    Grandiosa            2    57.5    4    3.45     0.0   75    98           98    +23
5    Garden Of Eden       3    57.0    5    3.95     6.0   86    85           85    -1
6    Spoil Yourself       2    53.5    6    5.45     0.0   78    89           89    +11
7    Russian Royal        3    54.5    7    8.95     6.0   81    79           79    -2
8    Glee Club            2    59.0    8    10.20    0.0   78    100          100   +22
99   Senhora Victoria     3    55.0    99   0.00     6.0   -     80           80    +0
99   Lucky Miss           3    61.0    99   0.00     6.0   -     92           92    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jet To The Sun 72 78 78 ✓ Match 3.0 -
2 Kamchatka Line 91 93 91 +2 6.0
3 Kamakazi 80 73 98 -25 3.0 -
4 Grandiosa 75 80 98 -18 0.0 -
5 Garden Of Eden 86 79 85 -6 6.0 -
6 Spoil Yourself 78 73 89 -16 0.0 -
7 Russian Royal 81 87 79 +8 6.0 -
8 Glee Club 78 76 100 -24 0.0 -
99 Senhora Victoria - 66 80 -14 6.0 -
99 Lucky Miss - 82 92 -10 6.0 -
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