Official NHA Assessment

Race 5: RACEHORSE OWNERS ASSOCIATION PINNACLE STAKES (Open to all horses)

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Line Horse
Global Ally
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
1 / 7
Within 2 points
Significant Diffs
6 / 7
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    61.0    1    0.00     0.0   104   98           98    -6
2    Global Ally          6    59.5    2    2.75     0.0   98    98           98    +0
3    Bournemouth          5    59.5    3    4.00     0.0   97    97           97    +0
4    No Place Like Home   2    55.0    4    5.25     0.0   84    86           86    +2
5    Euphoric             6    52.0    5    6.50     0.0   78    80           80    +2
6    Magical Midlands     4    53.5    6    10.75    7.0   79    69           69    -10
99   Syx Hotfix           3    58.0    99   0.00     10.0  -     72           72    +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 104 114 98 +16 0.0 -
2 Global Ally Line 98 97 98 -1 0.0
3 Bournemouth 97 110 97 +13 0.0 -
4 No Place Like Home 84 80 86 -6 0.0 -
5 Euphoric 78 62 80 -18 0.0 -
6 Magical Midlands 79 79 69 +10 7.0 -
99 Syx Hotfix - 83 72 +11 10.0 -
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