Official NHA Assessment

Race 2: RACING TODAY OPEN MAIDEN (For all Maidens)

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Line Horse
Bomber Bay
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
6 / 9
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Global Drumbeat      3    57.0    1    0.00     9.0   64    43           43    -21
2    Bomber Bay           2    57.0    2    2.00     0.0   64    64           64    +0
3    Blind Faith          4    53.0    3    3.25     7.0   50    41           41    -9
4    Dinero               4    54.0    4    3.75     7.0   45    42           42    -3
5    Quick Crown          2    49.0    5    3.80     0.0   44    46           46    +2
6    Darling Girl         2    50.5    6    4.05     0.0   52    49           49    -3
7    Monocle              3    54.0    7    7.30     9.0   56    37           46    -10
8    Red Orchid Rising    2    53.0    8    12.80    0.0   65    53           55    -10
99   Fizzly Bubbly        3    60.0    99   0.00     9.0   -     49           49    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Global Drumbeat 64 65 43 +22 9.0 -
2 Bomber Bay Line 64 60 64 -4 0.0
3 Blind Faith 50 52 41 +11 7.0 -
4 Dinero 45 51 42 +9 7.0 -
5 Quick Crown 44 65 46 +19 0.0 -
6 Darling Girl 52 54 49 +5 0.0 -
7 Monocle 56 52 46 +6 9.0 -
8 Red Orchid Rising 65 60 55 +5 0.0 -
99 Fizzly Bubbly - 70 49 +21 9.0 -
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