Official NHA Assessment

Race 6: TAB 4RACING APP CLASSIFIED STAKES (For All Horses)

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Line Horse
King Viserys
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
4 / 13
Within 2 points
Significant Diffs
5 / 13
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    Porfirio             6    57.0    1    0.00     0.0   76    69           69    -7
2    Curtiss Condor       3    61.0    2    0.10     4.0   76    69           69    -7
3    Silent Trigger       6    52.5    3    0.35     0.0   62    65           65    +3
4    King Viserys         4    60.0    4    2.60     2.0   73    73           73    +0
5    Downing Seven        5    60.5    5    2.85     0.0   75    78           78    +3
6    Hospices De Beaune   3    58.0    6    4.10     4.0   69    64           64    -5
7    Colorama             6    50.0    7    4.85     0.0   52    55           55    +3
8    Future Saint         4    52.0    8    6.10     2.0   55    55           55    +0
9    Alado's Pride        7    60.0    9    7.85     0.0   74    75           75    +1
10   Arlu                 2    58.0    10   11.10    0.0   76    71           71    -5
11   On An Impulse        2    56.0    11   11.35    0.0   82    67           72    -10
12   Stand Up             3    56.0    12   17.60    4.0   65    59           59    -6
99   Take Your Time       3    52.0    99   0.00     4.0   -     51           51    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Porfirio 76 88 69 +19 0.0 -
2 Curtiss Condor 76 79 69 +10 4.0 -
3 Silent Trigger 62 60 65 -5 0.0 -
4 King Viserys Line 73 73 73 ✓ Match 2.0
5 Downing Seven 75 69 78 -9 0.0 -
6 Hospices De Beaune 69 68 64 +4 4.0 -
7 Colorama 52 54 55 -1 0.0 -
8 Future Saint 55 53 55 -2 2.0 -
9 Alado's Pride 74 73 75 -2 0.0 -
10 Arlu 76 68 71 -3 0.0 -
11 On An Impulse 82 79 72 +7 0.0 -
12 Stand Up 65 62 59 +3 4.0 -
99 Take Your Time - 60 51 +9 4.0 -
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