Official NHA Assessment

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

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Line Horse
Bad Medicine
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
11 / 12
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    Bad Medicine         3    57.0    1    0.00     5.5   100   100          100   +0
2    Home Reef            3    54.0    2    0.50     5.5   87    100          100   +13
3    Bournemouth          5    62.0    3    3.50     0.0   110   123          123   +13
4    Anatolian Silver     3    50.0    4    3.60     5.5   78    88           88    +10
5    Spoil Yourself       2    50.0    5    5.10     0.0   73    97           97    +24
6    Darling Girl         2    50.0    6    7.35     0.0   54    97           97    +43
7    Juan Carlos          7    55.0    7    8.35     0.0   93    107          107   +14
8    Garden Sun           3    50.5    8    8.85     5.5   69    87           87    +18
9    Welsh Starlet        3    50.0    9    19.10    5.5   63    86           86    +23
10   Twenty Drachma's     4    52.5    10   36.60    2.0   83    98           98    +15
11   Only A Poet          3    50.5    11   37.60    5.5   59    87           87    +28
99   Zatara Magic         5    62.0    99   0.00     0.0   -     121          121   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bad Medicine Line 100 100 100 ✓ Match 5.5
2 Home Reef 87 87 100 -13 5.5 -
3 Bournemouth 110 108 123 -15 0.0 -
4 Anatolian Silver 78 78 88 -10 5.5 -
5 Spoil Yourself 73 73 97 -24 0.0 -
6 Darling Girl 54 54 97 -43 0.0 -
7 Juan Carlos 93 91 107 -16 0.0 -
8 Garden Sun 69 69 87 -18 5.5 -
9 Welsh Starlet 63 63 86 -23 5.5 -
10 Twenty Drachma's 83 80 98 -18 2.0 -
11 Only A Poet 59 59 87 -28 5.5 -
99 Zatara Magic - 114 121 -7 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