Official NHA Assessment

Race 6: RACING240 FM 76 DIVIDED HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Boom Boom
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
0 / 8
Within 2 points
Significant Diffs
4 / 8
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    Hazy Dazy            2    56.0    1    0.00     0.0   89    72           89    +0
2    Boom Boom            4    60.0    2    1.00     5.0   76    76           76    +0
3    Damova               3    60.0    3    2.00     9.0   76    67           67    -9
4    Hollywood Madam      4    55.0    4    9.00     5.0   66    60           60    -6
5    Wagram               3    57.5    5    9.60     9.0   73    57           63    -10
6    Kiss Of Fire         5    56.0    6    9.80     0.0   68    72           72    +4
7    Bold Action          2    54.0    7    11.00    0.0   82    68           72    -10
8    Pepper Tree          2    53.5    8    32.25    0.0   81    67           71    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Hazy Dazy 89 117 89 +28 0.0 -
2 Boom Boom Line 76 81 76 +5 5.0
3 Damova 76 85 67 +18 9.0 -
4 Hollywood Madam 66 65 60 +5 5.0 -
5 Wagram 73 70 63 +7 9.0 -
6 Kiss Of Fire 68 68 72 -4 0.0 -
7 Bold Action 82 62 72 -10 0.0 -
8 Pepper Tree 81 67 71 -4 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