Official NHA Assessment

Race 4: 4RACING THANKS AND APPRECIATES SEAN TARRY RACING FM 76 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Primrose Path
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
9 / 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    Key Element          4    55.5    1    0.00     7.0   85    53           85    +0
2    Primrose Path        2    57.0    2    3.50     0.0   71    71           71    +0
3    Godspeed             2    53.5    3    3.90     0.0   81    64           71    -10
4    Maboneng             3    54.5    4    4.00     9.0   68    48           58    -10
5    Cerulean Dancer      2    52.0    5    4.50     0.0   55    60           60    +5
6    Meet The Captain     4    52.0    6    5.00     7.0   55    46           46    -9
7    Sparkling Jubilee    5    56.5    7    7.00     0.0   70    69           69    -1
8    Miss Shaivi          4    56.5    8    7.75     7.0   87    55           77    -10
9    Just Be Nice         3    60.0    9    8.00     9.0   76    58           66    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Key Element 85 92 85 +7 7.0 -
2 Primrose Path Line 71 77 71 +6 0.0
3 Godspeed 81 60 71 -11 0.0 -
4 Maboneng 68 67 58 +9 9.0 -
5 Cerulean Dancer 55 71 60 +11 0.0 -
6 Meet The Captain 55 52 46 +6 7.0 -
7 Sparkling Jubilee 70 76 69 +7 0.0 -
8 Miss Shaivi 87 68 77 -9 7.0 -
9 Just Be Nice 76 73 66 +7 9.0 -
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