Official NHA Assessment

Race 9: TAB J J THE JET PLANE STAKES (Grade 3) (For all Horses)

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Line Horse
Iphiko
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
2 / 14
Within 2 points
Significant Diffs
8 / 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    Mover And Shaker     5    58.0    1    0.00     0.0   112   124          118   +6
2    Iphiko               3    53.5    2    0.75     3.5   108   108          108   +0
3    Rulership            2    58.0    3    1.75     2.5   112   119          119   +7
4    William Robertson    6    62.0    4    2.75     0.0   125   132          132   +7
5    Kiss Me Captain      2    53.5    5    5.00     2.5   111   110          110   -1
6    Anfields Rocket      5    58.0    6    5.75     0.0   115   124          124   +9
7    Bard Of Avon         3    54.0    7    5.80     3.5   105   109          109   +4
8    Captain Hindsight    5    56.0    8    5.85     0.0   110   120          120   +10
9    Trompie              2    54.0    9    6.60     2.5   102   111          111   +9
10   Black Egret          3    50.0    10   7.35     3.5   96    101          101   +5
11   Alula's Star         3    53.5    11   7.60     3.5   108   108          108   +0
12   Dyce                 6    62.0    12   11.10    0.0   130   132          132   +2
13   Var Park             5    50.0    13   17.35    0.0   84    108          108   +24
14   Taikonaut            2    58.0    14   18.35    2.5   113   119          119   +6
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Mover And Shaker 112 109 118 -9 0.0 -
2 Iphiko Line 108 111 108 +3 3.5
3 Rulership 112 118 119 -1 2.5 -
4 William Robertson 125 124 132 -8 0.0 -
5 Kiss Me Captain 111 112 110 +2 2.5 -
6 Anfields Rocket 115 106 124 -18 0.0 -
7 Bard Of Avon 105 105 109 -4 3.5 -
8 Captain Hindsight 110 112 120 -8 0.0 -
9 Trompie 102 107 111 -4 2.5 -
10 Black Egret 96 90 101 -11 3.5 -
11 Alula's Star 108 102 108 -6 3.5 -
12 Dyce 130 128 132 -4 0.0 -
13 Var Park 84 87 108 -21 0.0 -
14 Taikonaut 113 104 119 -15 2.5 -
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