Official NHA Assessment

Race 5: BETWAY BOOST FM 87 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Lady Calavera
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
6 / 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    Key Element          4    54.0    1    0.00     6.0   92    73           92    +0
2    I Am Regal           5    53.5    2    0.10     0.0   78    84           84    +6
3    Lady Calavera        4    56.5    3    2.75     6.0   80    80           80    +0
4    Midnight Crystal     2    53.5    4    5.25     0.0   80    84           84    +4
5    Ballroom Bliss       4    57.5    5    5.75     6.0   82    80           80    -2
6    Avoontoast           5    58.5    6    7.25     0.0   85    94           94    +9
7    Queen Of Smoke       2    60.0    7    13.75    0.0   88    97           97    +9
99   Back To The Future   2    52.5    99   0.00     0.0   -     82           82    +0
99   Elemental Force      2    52.0    99   0.00     0.0   -     81           81    +0
99   Light Of Day         5    56.0    99   0.00     0.0   -     89           89    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Key Element 92 92 92 ✓ Match 6.0 -
2 I Am Regal 78 75 84 -9 0.0 -
3 Lady Calavera Line 80 81 80 +1 6.0
4 Midnight Crystal 80 66 84 -18 0.0 -
5 Ballroom Bliss 82 84 80 +4 6.0 -
6 Avoontoast 85 86 94 -8 0.0 -
7 Queen Of Smoke 88 74 97 -23 0.0 -
99 Back To The Future - 74 82 -8 0.0 -
99 Elemental Force - 78 81 -3 0.0 -
99 Light Of Day - 61 89 -28 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