Official NHA Assessment

Race 7: P3 RACING SYNDICATE CLASS 4 (Open. Benchmark at 60.0kg = 80)

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Line Horse
Trippi's Silk
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
3 / 14
Within 2 points
Significant Diffs
10 / 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    King Of Spin         3    58.5    1    0.00     8.0   78    70           70    -8
2    One Liner            2    54.5    2    0.30     0.0   85    83           83    -2
3    Trippi's Silk        4    56.5    3    2.30     5.0   74    74           74    +0
4    Please Be True       2    55.5    4    3.05     0.0   87    82           82    -5
5    War Chariot          4    60.0    5    3.35     5.0   81    80           80    -1
6    Paratrooper          4    59.5    6    3.40     5.0   80    79           79    -1
6    Wissa's On Fire      4    60.5    6    3.40     5.0   82    81           81    -1
8    Grand Bay            2    58.5    8    5.15     0.0   78    86           86    +8
9    Winter Pearl         6    57.5    9    5.25     0.0   75    84           84    +9
10   Prince Of Tibet      4    56.5    10   5.75     5.0   73    72           72    -1
11   Mighty Mac           5    58.5    11   6.05     0.0   76    86           86    +10
12   Night Tiger          5    58.5    12   7.05     0.0   77    86           86    +9
99   Morning Chess        4    52.5    99   0.00     5.0   -     64           64    +0
99   Tambourine Man       5    52.5    99   0.00     0.0   -     74           74    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 King Of Spin 78 91 70 +21 8.0 -
2 One Liner 85 88 83 +5 0.0 -
3 Trippi's Silk Line 74 73 74 -1 5.0
4 Please Be True 87 93 82 +11 0.0 -
5 War Chariot 81 82 80 +2 5.0 -
6 Paratrooper 80 73 79 -6 5.0 -
6 Wissa's On Fire 82 71 81 -10 5.0 -
8 Grand Bay 78 74 86 -12 0.0 -
9 Winter Pearl 75 71 84 -13 0.0 -
10 Prince Of Tibet 73 63 72 -9 5.0 -
11 Mighty Mac 76 52 86 -34 0.0 -
12 Night Tiger 77 67 86 -19 0.0 -
99 Morning Chess - 65 64 +1 5.0 -
99 Tambourine Man - 64 74 -10 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