Official NHA Assessment

Race 7: WORLD SPORTS BETTING 1900 (Grade 3) (For all Horses)

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Line Horse
Narina Trogon
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
2 / 14
Within 2 points
Significant Diffs
9 / 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    Selukwe              3    54.0    1    0.00     2.5   103   96           96    -7
2    Narina Trogon        5    54.0    2    2.20     0.0   106   106          106   +0
3    Underworld           2    56.0    3    2.50     0.0   108   109          109   +1
4    Okavango             3    52.0    4    3.20     2.5   96    95           95    -1
5    Thunee Playa         4    54.0    5    4.10     1.0   105   101          101   -4
6    Shoot The Rapids     4    58.0    6    4.30     1.0   112   108          108   -4
7    I Salute You         3    52.0    7    4.90     2.5   103   92           93    -10
8    Future Swing         2    60.0    8    6.30     0.0   117   113          113   -4
9    Native Ruler         3    52.0    9    6.40     2.5   103   92           93    -10
10   Infinite Wonder      7    54.0    10   7.00     0.0   102   101          101   -1
11   Cape Eagle           7    56.0    11   7.60     0.0   110   105          105   -5
12   Holding Thumbs       4    56.0    12   9.20     1.0   107   103          103   -4
13   Madison Valley       4    60.0    13   10.60    1.0   117   111          111   -6
14   Indian Ocean         3    53.5    14   11.00    2.5   111   95           101   -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Selukwe 103 115 96 +19 2.5 -
2 Narina Trogon Line 106 102 106 -4 0.0
3 Underworld 108 111 109 +2 0.0 -
4 Okavango 96 123 95 +28 2.5 -
5 Thunee Playa 105 107 101 +6 1.0 -
6 Shoot The Rapids 112 117 108 +9 1.0 -
7 I Salute You 103 112 93 +19 2.5 -
8 Future Swing 117 116 113 +3 0.0 -
9 Native Ruler 103 123 93 +30 2.5 -
10 Infinite Wonder 102 86 101 -15 0.0 -
11 Cape Eagle 110 106 105 +1 0.0 -
12 Holding Thumbs 107 119 103 +16 1.0 -
13 Madison Valley 117 116 111 +5 1.0 -
14 Indian Ocean 111 107 101 +6 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