Official NHA Assessment

Race 4: IN THE BOX SEAT PODCAST MR 68 HANDICAP (Open)

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Line Horse
Shotgun Willie
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
2 / 12
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    Jazz Festival        5    58.5    1    0.00     0.0   65    63           65    +0
2    Shotgun Willie       3    60.5    2    0.70     1.5   69    69           69    +0
3    Oh My Word Its Roy   3    52.0    3    1.30     1.5   48    50           50    +2
4    Buzz Bomb            2    60.0    4    1.35     0.0   89    69           79    -10
5    Mount Meru           4    52.0    5    2.25     0.5   52    52           52    +0
6    Vermacilli           3    52.5    6    3.05     1.5   53    50           50    -3
7    Elegant Act          3    61.0    7    4.15     1.5   73    66           66    -7
8    Crested Eagle        3    57.5    8    6.45     1.5   63    58           58    -5
9    Bunting              4    59.0    9    9.15     0.5   66    63           63    -3
10   Pongola              5    59.0    10   9.35     0.0   69    64           64    -5
11   Moon Harvest         2    55.5    11   21.55    0.0   59    57           57    -2
99   Silent Trigger       6    58.5    99   0.00     0.0   -     63           63    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jazz Festival 65 70 65 +5 0.0 -
2 Shotgun Willie Line 69 66 69 -3 1.5
3 Oh My Word Its Roy 48 50 50 ✓ Match 1.5 -
4 Buzz Bomb 89 88 79 +9 0.0 -
5 Mount Meru 52 50 52 -2 0.5 -
6 Vermacilli 53 54 50 +4 1.5 -
7 Elegant Act 73 71 66 +5 1.5 -
8 Crested Eagle 63 51 58 -7 1.5 -
9 Bunting 66 58 63 -5 0.5 -
10 Pongola 69 66 64 +2 0.0 -
11 Moon Harvest 59 55 57 -2 0.0 -
99 Silent Trigger - 60 63 -3 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