Official NHA Assessment

Race 7: BETWAY MONEY BACK BOOST FM 81 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Lady Calavera
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 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    Damostar             4    52.0    1    0.00     5.0   78    61           78    +0
2    Lady Calavera        4    59.5    2    0.75     5.0   80    80           80    +0
3    Soldier's Eye        4    60.0    3    0.80     5.0   99    81           89    -10
4    I Am Regal           5    58.0    4    1.00     0.0   82    87           87    +5
5    Namaqua Blossom      3    59.0    5    2.50     9.0   81    69           71    -10
6    Quiet Rebellion      3    58.5    6    4.25     9.0   78    67           68    -10
7    Memorial Day         2    52.0    7    6.00     0.0   62    71           71    +9
8    Midnight Crystal     2    56.5    8    6.75     0.0   79    80           80    +1
9    Explosive Bond       4    52.0    9    8.75     5.0   77    61           67    -10
99   Summer Fling         3    52.0    99   0.00     9.0   -     53           53    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Damostar 78 91 78 +13 5.0 -
2 Lady Calavera Line 80 81 80 +1 5.0
3 Soldier's Eye 99 94 89 +5 5.0 -
4 I Am Regal 82 75 87 -12 0.0 -
5 Namaqua Blossom 81 75 71 +4 9.0 -
6 Quiet Rebellion 78 74 68 +6 9.0 -
7 Memorial Day 62 49 71 -22 0.0 -
8 Midnight Crystal 79 66 80 -14 0.0 -
9 Explosive Bond 77 94 67 +27 5.0 -
99 Summer Fling - 50 53 -3 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