Official NHA Assessment

Race 5: BETWAY MERCHANTS (Grade 3) (Open)

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Line Horse
Full Velocity
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
0 / 13
Within 2 points
Significant Diffs
11 / 13
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    Vars Vicky           4    56.5    1    0.00     9.0   111   111          111   +0
2    Tread Swiftly        4    52.0    2    1.00     9.0   95    102          102   +7
3    Desert Miracle       3    57.5    3    2.00     7.5   113   116          116   +3
4    Full Velocity        4    57.5    4    2.25     9.0   113   113          113   +0
5    Winter Flight        4    52.0    5    3.00     9.0   100   102          102   +2
6    Vaseem               5    54.0    6    3.25     0.0   105   124          124   +19
7    Moonshiningthrough   3    52.0    7    3.75     7.5   101   105          105   +4
8    Now I Got You        5    52.0    8    4.75     0.0   106   120          120   +14
9    Sound Of Warning     3    58.0    9    5.50     7.5   114   117          117   +3
10   Big Burn             3    60.0    10   6.00     7.5   118   121          121   +3
11   Kayla's Champ        5    52.5    11   7.00     0.0   103   121          121   +18
12   Warrior's Rest       7    54.5    12   13.00    0.0   107   125          125   +18
99   Coin Spinner         3    52.5    99   0.00     7.5   -     106          106   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Vars Vicky 111 116 111 +5 9.0 -
2 Tread Swiftly 95 90 102 -12 9.0 -
3 Desert Miracle 113 124 116 +8 7.5 -
4 Full Velocity Line 113 94 113 -19 9.0
5 Winter Flight 100 94 102 -8 9.0 -
6 Vaseem 105 94 124 -30 0.0 -
7 Moonshiningthrough 101 96 105 -9 7.5 -
8 Now I Got You 106 67 120 -53 0.0 -
9 Sound Of Warning 114 110 117 -7 7.5 -
10 Big Burn 118 115 121 -6 7.5 -
11 Kayla's Champ 103 77 121 -44 0.0 -
12 Warrior's Rest 107 101 125 -24 0.0 -
99 Coin Spinner - 101 106 -5 7.5 -
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