Official NHA Assessment

Race 9: WSB 100 WELCOME SPINS CLASS 4 (Open. Benchmark at 60.0kg = 82)

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Line Horse
Gorgeous Guy
Reference for assessment
Exact Matches
2 / 12
Calculated = Official
Close Matches
5 / 12
Within 2 points
Significant Diffs
5 / 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    City Of Love         2    58.0    1    0.00     2.0   85    78           78    -7
2    Military Command     2    59.5    2    0.75     2.0   85    81           81    -4
3    Gorgeous Guy         2    59.5    3    2.85     2.0   81    81           81    +0
4    Who Blinked          3    60.0    4    2.95     3.0   82    80           80    -2
5    Trippi's Silk        4    55.5    5    6.75     3.5   73    70           70    -3
6    Chicarito            3    58.0    6    6.90     3.0   87    76           77    -10
7    She's All Mine       3    57.5    7    7.40     3.0   81    75           75    -6
8    Happy Wanderer       5    49.5    8    8.00     0.0   55    65           65    +10
9    Danube               3    55.5    9    11.10    3.0   76    71           71    -5
10   Hope Is Power        3    59.0    10   11.60    3.0   80    78           78    -2
11   My Boy Lollipop      2    54.5    11   12.35    2.0   79    71           71    -8
99   Mar Del Plata        2    57.5    99   0.00     2.0   -     77           77    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 City Of Love 85 91 78 +13 2.0 -
2 Military Command 85 87 81 +6 2.0 -
3 Gorgeous Guy Line 81 81 81 ✓ Match 2.0
4 Who Blinked 82 82 80 +2 3.0 -
5 Trippi's Silk 73 72 70 +2 3.5 -
6 Chicarito 87 87 77 +10 3.0 -
7 She's All Mine 81 79 75 +4 3.0 -
8 Happy Wanderer 55 55 65 -10 0.0 -
9 Danube 76 74 71 +3 3.0 -
10 Hope Is Power 80 80 78 +2 3.0 -
11 My Boy Lollipop 79 78 71 +7 2.0 -
99 Mar Del Plata - 77 77 ✓ Match 2.0 -
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