Official NHA Assessment

Race 5: WORLD SPORTS BETTING SPINAWINA CLASS 3 (Open. Benchmark at 60.0kg = 94)

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Line Horse
Wyag
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
1 / 14
Within 2 points
Significant Diffs
9 / 14
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    Dance Variety        2    54.0    1    0.00     0.5   83    83           83    +0
2    Dean Street          3    58.5    2    1.25     1.5   91    90           90    -1
3    Wyag                 2    54.5    3    2.25     0.5   84    84           84    +0
4    All About Al         7    53.5    4    2.75     0.0   81    83           83    +2
5    Double Charge        5    56.0    5    2.95     0.0   86    88           88    +2
6    Pas De Nom           2    59.0    6    3.95     0.5   93    93           93    +0
7    Barzalona            6    60.5    7    4.35     0.0   95    97           97    +2
8    Ragnar Lothbrok      3    59.0    8    4.45     1.5   92    91           91    -1
9    World's Best         3    55.0    9    4.95     1.5   85    83           83    -2
10   Carriacou            3    55.0    10   5.70     1.5   85    83           83    -2
11   Fifty Fiver          3    62.0    11   6.00     1.5   98    97           97    -1
12   Sun Dazed            6    57.5    12   8.25     0.0   89    91           91    +2
13   Bluff On Bluff       3    52.0    13   9.50     1.5   78    77           77    -1
99   Piroshka             5    59.5    99   0.00     0.0   -     95           95    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dance Variety 83 114 83 +31 0.5 -
2 Dean Street 91 102 90 +12 1.5 -
3 Wyag Line 84 74 84 -10 0.5
4 All About Al 81 78 83 -5 0.0 -
5 Double Charge 86 80 88 -8 0.0 -
6 Pas De Nom 93 91 93 -2 0.5 -
7 Barzalona 95 66 97 -31 0.0 -
8 Ragnar Lothbrok 92 81 91 -10 1.5 -
9 World's Best 85 87 83 +4 1.5 -
10 Carriacou 85 78 83 -5 1.5 -
11 Fifty Fiver 98 76 97 -21 1.5 -
12 Sun Dazed 89 64 91 -27 0.0 -
13 Bluff On Bluff 78 80 77 +3 1.5 -
99 Piroshka - 72 95 -23 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