Official NHA Assessment

Race 8: WWW.TAB4RACING.COM NOVICE HANDICAP (Maidens & 1 time winners)

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Line Horse
King Rahul
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
7 / 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    King's Ransom        4    58.5    1    0.00     0.5   80    77           70    -10
2    Apache Son           4    56.5    2    0.50     0.5   76    78           78    +2
3    King Rahul           4    56.0    3    2.00     0.5   75    75           75    +0
4    Fast Duty            3    55.5    4    2.50     2.0   70    70           70    +0
5    Golden Pavilion      2    57.5    5    4.25     0.0   78    77           77    -1
6    Prince Of Kildare    4    54.0    6    7.00     0.5   71    68           68    -3
7    American Biscuit     3    58.0    7    7.50     2.0   75    73           73    -2
8    Care Taker           4    60.0    8    9.75     0.5   83    80           80    -3
9    Billy Spellbound     2    59.5    9    11.75    0.0   78    80           80    +2
99   Little Miz Swagger   2    56.5    99   0.00     0.0   -     74           74    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 King's Ransom 80 89 70 +19 0.5 -
2 Apache Son 76 89 78 +11 0.5 -
3 King Rahul Line 75 63 75 -12 0.5
4 Fast Duty 70 67 70 -3 2.0 -
5 Golden Pavilion 78 95 77 +18 0.0 -
6 Prince Of Kildare 71 80 68 +12 0.5 -
7 American Biscuit 75 65 73 -8 2.0 -
8 Care Taker 83 76 80 -4 0.5 -
9 Billy Spellbound 78 73 80 -7 0.0 -
99 Little Miz Swagger - 71 74 -3 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