Official NHA Assessment

Race 3: FOLLOW IN THE BOX SEAT PODCAST MAIDEN PLATE (For all Maidens)

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Line Horse
Power Star
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
7 / 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    Royal Swan Master    3    58.0    1    0.00     7.0   -     51           6     +6
2    Helsinki             2    58.0    2    1.30     0.0   77    68           68    -9
3    Teerex               4    58.0    3    1.60     4.5   74    59           64    -10
4    Power Star           2    58.5    4    3.50     0.0   67    67           67    +0
5    King Of Queen        2    58.0    5    13.20    0.0   75    65           65    -10
6    Thalaiva             2    58.0    6    13.60    0.0   61    65           65    +4
7    Mazatlan             3    60.0    7    15.70    7.0   62    55           55    -7
8    Nikolai Kopernik     2    58.0    8    18.90    0.0   -     65           65    +65
9    Ubuntu Warrior       2    58.0    9    23.20    0.0   -     65           65    +65
10   Bomber Stream        4    58.0    10   52.60    4.5   72    56           62    -10
99   Teriyaki             4    58.0    99   0.00     4.5   -     56           56    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Royal Swan Master - 83 6 +77 7.0 -
2 Helsinki 77 72 68 +4 0.0 -
3 Teerex 74 66 64 +2 4.5 -
4 Power Star Line 67 58 67 -9 0.0
5 King Of Queen 75 65 65 ✓ Match 0.0 -
6 Thalaiva 61 56 65 -9 0.0 -
7 Mazatlan 62 58 55 +3 7.0 -
8 Nikolai Kopernik - 45 65 -20 0.0 -
9 Ubuntu Warrior - 51 65 -14 0.0 -
10 Bomber Stream 72 52 62 -10 4.5 -
99 Teriyaki - 71 56 +15 4.5 -
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