Official NHA Assessment

Race 3: IN THE BOX SEAT PODCAST BROUGHT TO YOU BY GALLOP TV MIDDLE STAKES (For All Horses)

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Line Horse
Isivivane
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
8 / 11
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    Rollo The Viking     3    54.5    1    0.00     6.0   91    81           81    -10
2    Queue Wing           7    55.5    2    1.60     0.0   83    98           98    +15
3    Isivivane            3    60.0    3    1.70     6.0   95    95           95    +0
4    Stars In Heaven      2    57.0    4    2.30     0.0   87    100          100   +13
5    Kitchakal            5    58.5    5    2.80     0.0   91    103          103   +12
6    The Gliding Fish     6    51.0    6    3.20     0.0   72    88           88    +16
7    Claw                 4    58.5    7    4.50     3.5   94    94           94    +0
8    Rooster Bradshaw     3    54.0    8    6.10     6.0   81    80           80    -1
9    King Of Spin         3    58.5    9    9.30     6.0   91    89           89    -2
10   Quandary             5    57.0    10   99.99    0.0   88    98           98    +10
99   Plaza Accord         2    55.5    99   0.00     0.0   -     95           95    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rollo The Viking 91 96 81 +15 6.0 -
2 Queue Wing 83 81 98 -17 0.0 -
3 Isivivane Line 95 104 95 +9 6.0
4 Stars In Heaven 87 87 100 -13 0.0 -
5 Kitchakal 91 86 103 -17 0.0 -
6 The Gliding Fish 72 68 88 -20 0.0 -
7 Claw 94 91 94 -3 3.5 -
8 Rooster Bradshaw 81 78 80 -2 6.0 -
9 King Of Spin 91 91 89 +2 6.0 -
10 Quandary 88 88 98 -10 0.0 -
99 Plaza Accord - 84 95 -11 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