Official NHA Assessment

Race 7: GLENLAIR TROPHY (For all horses - Non-Black Type)

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Line Horse
Medlers Tart
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
7 / 9
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    Zatara Magic         5    60.0    1    0.00     0.0   99    97           97    -2
2    Medlers Tart         2    57.5    2    1.25     0.0   97    97           97    +0
3    Great Affair         7    53.0    3    1.30     0.0   68    88           88    +20
4    Peace In Our World   6    60.0    4    3.55     0.0   97    99           99    +2
5    Adios Amigos         4    53.0    5    8.80     2.0   68    79           79    +11
6    Castletown           3    58.0    6    8.85     5.5   93    82           83    -10
7    Bournemouth          5    60.0    7    12.85    0.0   97    97           97    +0
8    Raratonga Rose       2    53.0    8    12.90    0.0   84    83           83    -1
99   Thefutureisbright    3    60.0    99   0.00     5.5   -     86           86    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Zatara Magic 99 114 97 +17 0.0 -
2 Medlers Tart Line 97 92 97 -5 0.0
3 Great Affair 68 63 88 -25 0.0 -
4 Peace In Our World 97 89 99 -10 0.0 -
5 Adios Amigos 68 55 79 -24 2.0 -
6 Castletown 93 90 83 +7 5.5 -
7 Bournemouth 97 110 97 +13 0.0 -
8 Raratonga Rose 84 80 83 -3 0.0 -
99 Thefutureisbright - 94 86 +8 5.5 -
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