Official NHA Assessment

Race 1: #THISISRACING WELCOMES YOU MAIDEN PLATE (For all Maidens)

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Line Horse
Twice A Miracle
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 10
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    Bally Magic          6    60.0    1    0.00     0.0   61    73           67    +6
2    Twice A Miracle      3    57.0    2    0.50     3.0   66    66           66    +0
3    Alabaster            3    60.0    3    2.25     3.0   67    70           70    +3
4    Porfirio             6    60.0    4    2.50     0.0   -     75           75    +75
5    Free Wylie           4    60.0    5    2.70     1.5   -     72           72    +72
6    Phantomoftheforest   3    60.0    6    3.80     3.0   -     68           68    +68
7    Prince Petrova       3    60.0    7    6.20     3.0   -     67           67    +67
8    Full Go              6    60.0    8    6.30     0.0   45    73           73    +28
9    Al Borani            3    60.0    9    11.30    3.0   65    67           67    +2
99   Brief Crusade        3    60.0    99   0.00     3.0   -     67           67    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bally Magic 61 60 67 -7 0.0 -
2 Twice A Miracle Line 66 67 66 +1 3.0
3 Alabaster 67 53 70 -17 3.0 -
4 Porfirio - 88 75 +13 0.0 -
5 Free Wylie - 57 72 -15 1.5 -
6 Phantomoftheforest - 50 68 -18 3.0 -
7 Prince Petrova - 50 67 -17 3.0 -
8 Full Go 45 59 73 -14 0.0 -
9 Al Borani 65 60 67 -7 3.0 -
99 Brief Crusade - 64 67 -3 3.0 -
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