Official NHA Assessment

Race 7: P D NIXON CONTAINERS GRADUATION PLATE (For Maidens, 1 & 2 Time Winners)

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Line Horse
Spring Tradition
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
6 / 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    Chronicle King       2    58.5    1    0.00     0.0   112   99           99    -13
2    Sukhumvit            3    54.5    2    0.10     8.0   93    75           83    -10
3    Echo Check           2    57.0    3    0.50     0.0   98    101          101   +3
4    Gerbera              3    57.0    4    1.75     8.0   98    83           88    -10
5    King Harald          2    55.5    5    4.25     0.0   109   94           99    -10
6    Spring Tradition     3    60.0    6    4.75     8.0   86    86           86    +0
7    Got The Feeling      2    54.0    7    5.50     0.0   93    90           90    -3
8    Copper Eagle         2    55.5    8    6.25     0.0   91    93           93    +2
9    Alta Capitana        2    52.5    9    13.50    0.0   87    87           87    +0
99   Trust                2    55.5    99   0.00     0.0   -     93           93    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Chronicle King 112 115 99 +16 0.0 -
2 Sukhumvit 93 100 83 +17 8.0 -
3 Echo Check 98 98 101 -3 0.0 -
4 Gerbera 98 98 88 +10 8.0 -
5 King Harald 109 102 99 +3 0.0 -
6 Spring Tradition Line 86 81 86 -5 8.0
7 Got The Feeling 93 90 90 ✓ Match 0.0 -
8 Copper Eagle 91 100 93 +7 0.0 -
9 Alta Capitana 87 80 87 -7 0.0 -
99 Trust - 110 93 +17 0.0 -
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