Official NHA Assessment

Race 4: 4RACING.TV CLASSIFIED STAKES (For horses with nett rating of 71 and below)

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Line Horse
Spanish Fort
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
6 / 12
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    Notorix              6    60.0    1    0.00     0.0   70    69           69    -1
2    Stay The Course      4    56.0    2    1.25     7.0   61    47           51    -10
3    Spanish Fort         5    56.0    3    2.25     0.0   61    61           61    +0
4    Verified             3    58.0    4    2.35     6.0   65    53           55    -10
5    Great Guy            5    54.0    5    2.85     0.0   56    57           57    +1
6    Charge Down          4    52.0    6    2.95     7.0   50    39           40    -10
7    Miss Rose            3    52.5    7    3.00     6.0   57    42           47    -10
8    Granddaddy Purple    3    54.0    8    3.25     6.0   58    45           48    -10
9    Waya Yire            3    58.5    9    4.50     6.0   70    54           60    -10
10   Potente              2    56.0    10   4.75     4.0   69    53           59    -10
11   South East           4    58.0    11   14.25    7.0   66    51           56    -10
99   Sanctity             4    56.0    99   0.00     7.0   -     47           47    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Notorix 70 68 69 -1 0.0 -
2 Stay The Course 61 67 51 +16 7.0 -
3 Spanish Fort Line 61 50 61 -11 0.0
4 Verified 65 65 55 +10 6.0 -
5 Great Guy 56 54 57 -3 0.0 -
6 Charge Down 50 51 40 +11 7.0 -
7 Miss Rose 57 57 47 +10 6.0 -
8 Granddaddy Purple 58 50 48 +2 6.0 -
9 Waya Yire 70 64 60 +4 6.0 -
10 Potente 69 60 59 +1 4.0 -
11 South East 66 55 56 -1 7.0 -
99 Sanctity - 61 47 +14 7.0 -
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