Official NHA Assessment

Race 4: TAB TELEBET 0861 000 822 MR 66 HANDICAP (Open)

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Line Horse
King Rahul
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
3 / 9
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    Supreme Judge        2    57.0    1    0.00     0.0   74    73           74    +0
2    Wild Fig             2    59.0    2    0.10     0.0   78    77           77    -1
3    King Rahul           4    52.5    3    1.85     4.0   59    59           59    +0
4    Rototo               3    59.0    4    2.35     7.0   64    65           65    +1
5    Donny's Boy          3    60.5    5    4.60     7.0   67    66           66    -1
6    Captain Clever       2    61.5    6    5.35     0.0   69    82           82    +13
7    Future Saint         4    56.0    7    6.85     4.0   58    63           63    +5
99   King's Sailor        3    59.5    99   0.00     7.0   -     64           64    +0
99   Arividicio           5    54.5    99   0.00     0.0   -     68           68    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Supreme Judge 74 77 74 +3 0.0 -
2 Wild Fig 78 82 77 +5 0.0 -
3 King Rahul Line 59 63 59 +4 4.0
4 Rototo 64 61 65 -4 7.0 -
5 Donny's Boy 67 68 66 +2 7.0 -
6 Captain Clever 69 63 82 -19 0.0 -
7 Future Saint 58 53 63 -10 4.0 -
99 King's Sailor - 67 64 +3 7.0 -
99 Arividicio - 50 68 -18 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