Official NHA Assessment

Race 7: WOLF POWER 1600 (Listed) (Handicap)

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Line Horse
Al Muthana (AUS)
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 10
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    Al Muthana (AUS)     4    59.0    1    0.00     2.5   109   109          109   +0
2    Stone Cold           4    52.5    2    5.25     2.5   95    96           96    +1
3    Willow Express       7    55.0    3    7.75     0.0   101   106          106   +5
4    Chijmes              6    55.5    4    11.00    0.0   102   107          107   +5
5    Prince Evlanoff      5    52.5    5    11.25    0.0   95    101          101   +6
6    ExpressFromTheUS     5    60.0    6    14.50    0.0   111   116          116   +5
7    Leopold              5    52.5    7    18.00    0.0   96    101          101   +5
8    Approach Control     6    54.5    8    18.75    0.0   100   105          105   +5
9    Indlamu              4    54.0    9    19.25    2.5   99    99           99    +0
10   Whorly Whorly        7    57.0    10   26.75    0.0   105   110          110   +5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Al Muthana (AUS) Line 109 114 109 +5 2.5
2 Stone Cold 95 94 96 -2 2.5 -
3 Willow Express 101 82 106 -24 0.0 -
4 Chijmes 102 94 107 -13 0.0 -
5 Prince Evlanoff 95 78 101 -23 0.0 -
6 ExpressFromTheUS 111 98 116 -18 0.0 -
7 Leopold 96 79 101 -22 0.0 -
8 Approach Control 100 95 105 -10 0.0 -
9 Indlamu 99 86 99 -13 2.5 -
10 Whorly Whorly 105 78 110 -32 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