Official NHA Assessment

Race 10: WSB SPIN WITH THE BEST MR 87 HANDICAP (Open)

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Line Horse
Set To Go
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
6 / 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    Aussenkehr           2    60.0    1    0.00     2.0   91    91           91    +0
2    Wind Water           3    59.5    2    0.05     3.0   90    88           88    -2
3    Set To Go            2    58.5    3    1.75     2.0   88    88           88    +0
4    Slinky Mapimpi       5    56.0    4    2.75     0.0   83    87           87    +4
5    Captain Hindsight    5    58.0    5    3.25     0.0   83    91           91    +8
6    Strike A Match       2    58.0    6    6.25     2.0   87    87           87    +0
7    Expeditioner         3    54.5    7    6.30     3.0   79    78           78    -1
8    Gimme Royalty        3    50.0    8    14.00    3.0   62    69           69    +7
9    Super Agra           4    59.0    9    24.00    3.5   85    86           86    +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Aussenkehr 91 79 91 -12 2.0 -
2 Wind Water 90 89 88 +1 3.0 -
3 Set To Go Line 88 84 88 -4 2.0
4 Slinky Mapimpi 83 101 87 +14 0.0 -
5 Captain Hindsight 83 112 91 +21 0.0 -
6 Strike A Match 87 76 87 -11 2.0 -
7 Expeditioner 79 76 78 -2 3.0 -
8 Gimme Royalty 62 49 69 -20 3.0 -
9 Super Agra 85 60 86 -26 3.5 -
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