Official NHA Assessment

Race 5: LONSDALE STIRRUP CUP (Listed) (Handicap)

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Line Horse
Future Swing
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
1 / 8
Within 2 points
Significant Diffs
6 / 8
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    Field Marshal        3    52.5    1    0.00     3.5   102   83           102   +0
2    Future Swing         2    63.5    2    1.40     0.0   117   117          117   +0
3    Shoot The Rapids     4    61.0    3    1.45     1.0   112   110          110   -2
4    Holding Thumbs       4    58.5    4    1.75     1.0   107   104          104   -3
5    Twenty Drachma's     4    52.0    5    2.05     1.0   93    91           91    -2
6    Blackberry Malt      5    54.0    6    3.55     0.0   98    95           95    -3
7    Marauding Horde      4    61.0    7    27.65    1.0   112   105          105   -7
8    Duke Of Africa       5    52.0    8    99.99    0.0   79    89           89    +10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Field Marshal 102 107 102 +5 3.5 -
2 Future Swing Line 117 116 117 -1 0.0
3 Shoot The Rapids 112 117 110 +7 1.0 -
4 Holding Thumbs 107 119 104 +15 1.0 -
5 Twenty Drachma's 93 83 91 -8 1.0 -
6 Blackberry Malt 98 82 95 -13 0.0 -
7 Marauding Horde 112 112 105 +7 1.0 -
8 Duke Of Africa 79 76 89 -13 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