Official NHA Assessment

Race 6: PINNACLE PLATE (90) (Race for all horses)

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Line Horse
Masaaken (AUS)
Reference for assessment
Exact Matches
0 / 5
Calculated = Official
Close Matches
2 / 5
Within 2 points
Significant Diffs
2 / 5
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    Masaaken (AUS)       4    56.5    1    0.00     6.0   88    88           88    +0
2    Three To Tango       6    58.5    2    0.50     0.0   81    110          110   +29
3    Wantage              8    60.0    3    0.75     0.0   86    112          112   +26
4    Obscure              4    55.0    4    2.25     6.0   83    89           89    +6
5    Tigers Eagle         3    53.5    5    2.75     9.5   82    78           78    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Masaaken (AUS) Line 88 92 88 +4 6.0
2 Three To Tango 81 87 110 -23 0.0 -
3 Wantage 86 78 112 -34 0.0 -
4 Obscure 83 87 89 -2 6.0 -
5 Tigers Eagle 82 79 78 +1 9.5 -
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