Official NHA Assessment

Race 5: www.hollywoodbets.net MR 74 HANDICAP (Open)

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Line Horse
Swift Action
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
9 / 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    Bluff On Bluff       3    56.0    1    0.00     9.5   66    66           66    +0
2    Bonanza              3    61.0    2    0.75     9.5   76    76           76    +0
3    Swift Action         3    57.0    3    1.05     9.5   68    68           68    +0
4    Red Impact           2    59.0    4    2.05     6.5   85    78           78    -7
5    Persistance          3    55.5    5    3.05     9.5   64    65           65    +1
6    Wordsworth           7    54.0    6    5.05     0.0   62    81           81    +19
7    King Mo              2    58.5    7    5.80     6.5   84    77           77    -7
8    Not In Doubt         2    56.5    8    7.05     6.5   80    73           73    -7
9    Silver Screen        2    57.5    9    7.45     6.5   82    75           75    -7
10   Chilly Winter        5    59.5    10   12.20    0.0   73    92           92    +19
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bluff On Bluff 66 80 66 +14 9.5 -
2 Bonanza 76 57 76 -19 9.5 -
3 Swift Action Line 68 77 68 +9 9.5
4 Red Impact 85 85 78 +7 6.5 -
5 Persistance 64 50 65 -15 9.5 -
6 Wordsworth 62 65 81 -16 0.0 -
7 King Mo 84 53 77 -24 6.5 -
8 Not In Doubt 80 66 73 -7 6.5 -
9 Silver Screen 82 70 75 -5 6.5 -
10 Chilly Winter 73 73 92 -19 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