Official NHA Assessment

Race 8: JET DARK STAKES CLASS 3 (Open. Benchmark at 60.0kg = 94)

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Line Horse
Icy Blast
Reference for assessment
Exact Matches
0 / 16
Calculated = Official
Close Matches
1 / 16
Within 2 points
Significant Diffs
13 / 16
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    60.5    1    0.00     3.5   95    107          101   +6
2    Future Variety       4    59.0    2    0.50     6.0   99    99           99    +0
3    Dumbledore           4    55.5    3    0.90     6.0   91    92           92    +1
4    Icy Blast            4    60.0    4    2.40     6.0   101   101          101   +0
5    Tough Terrain        5    54.5    5    2.70     0.0   83    102          102   +19
6    Zil Moris            2    59.0    6    3.10     3.5   99    104          104   +5
7    Cafe Culture         3    60.0    7    3.15     5.0   94    103          103   +9
8    Tenango              4    56.5    8    4.15     6.0   94    94           94    +0
9    Street Outlaw        5    54.5    9    4.55     0.0   82    102          102   +20
10   Steinbeck            3    55.0    10   4.85     5.0   84    93           93    +9
11   Double Olympic       4    54.5    11   5.15     6.0   90    90           90    +0
12   Double Charge        5    53.5    12   5.65     0.0   81    100          100   +19
13   Gimmelightning       2    57.0    13   6.65     3.5   95    100          100   +5
14   Usa's Hope           2    59.0    14   6.95     3.5   92    104          104   +12
15   Down By The River    2    54.0    15   7.95     3.5   88    94           94    +6
16   Bright Green         2    61.0    16   9.20     3.5   96    108          108   +12
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dance Variety 95 114 101 +13 3.5 -
2 Future Variety 99 116 99 +17 6.0 -
3 Dumbledore 91 105 92 +13 6.0 -
4 Icy Blast Line 101 88 101 -13 6.0
5 Tough Terrain 83 81 102 -21 0.0 -
6 Zil Moris 99 100 104 -4 3.5 -
7 Cafe Culture 94 118 103 +15 5.0 -
8 Tenango 94 126 94 +32 6.0 -
9 Street Outlaw 82 78 102 -24 0.0 -
10 Steinbeck 84 79 93 -14 5.0 -
11 Double Olympic 90 53 90 -37 6.0 -
12 Double Charge 81 80 100 -20 0.0 -
13 Gimmelightning 95 95 100 -5 3.5 -
14 Usa's Hope 92 97 104 -7 3.5 -
15 Down By The River 88 95 94 +1 3.5 -
16 Bright Green 96 76 108 -32 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