Official NHA Assessment

Race 4: WWW.TAB4RACING.COM MR 96 HANDICAP (Open)

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Line Horse
Imperial Master
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 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    Raiseahallelujah     7    55.0    1    0.00     0.0   86    83           86    +0
2    Imperial Master      4    56.5    2    0.50     0.5   92    92           92    +0
3    Jaimala              4    56.0    3    0.60     0.5   88    91           91    +3
4    Youcanthurrylove     5    60.5    4    2.30     0.0   97    98           98    +1
5    Kaptein              4    55.0    5    6.30     0.5   86    82           82    -4
6    Twin Turbo           4    50.5    6    8.50     0.5   76    73           73    -3
7    Green Haze           6    62.0    7    8.80     0.0   100   97           97    -3
8    Prince Evlanoff      5    58.0    8    9.00     0.0   92    89           89    -3
9    Origami              4    61.5    9    11.00    0.5   99    95           95    -4
10   London Roads         3    60.5    10   24.25    1.5   100   91           91    -9
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Raiseahallelujah 86 103 86 +17 0.0 -
2 Imperial Master Line 92 90 92 -2 0.5
3 Jaimala 88 101 91 +10 0.5 -
4 Youcanthurrylove 97 86 98 -12 0.0 -
5 Kaptein 86 80 82 -2 0.5 -
6 Twin Turbo 76 88 73 +15 0.5 -
7 Green Haze 100 98 97 +1 0.0 -
8 Prince Evlanoff 92 78 89 -11 0.0 -
9 Origami 99 92 95 -3 0.5 -
10 London Roads 100 78 91 -13 1.5 -
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