Official NHA Assessment

Race 6: RACING240 CLASSIFIED STAKES (F & M) (For F & M with nett rating of 78 and below)

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Line Horse
Costa Smeralda
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
5 / 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    Tipsy Tarragon       2    58.0    1    0.00     0.0   89    73           73    -16
2    Time Flies           3    58.0    2    3.25     0.5   74    74           74    +0
3    Cracklin' Rose       3    56.0    3    3.45     0.5   70    69           69    -1
4    Costa Smeralda       3    52.0    4    4.70     0.5   60    60           60    +0
5    Treasure Hunt        6    60.0    5    5.20     0.0   78    77           77    -1
6    Call Me The Breeze   2    56.0    6    7.70     0.0   88    69           78    -10
7    Margin Call          3    54.0    7    14.95    0.5   68    64           64    -4
8    Jet For Time         3    52.5    8    17.70    0.5   64    61           61    -3
9    Thrilla              3    52.5    9    32.95    0.5   64    61           61    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tipsy Tarragon 89 108 73 +35 0.0 -
2 Time Flies 74 117 74 +43 0.5 -
3 Cracklin' Rose 70 67 69 -2 0.5 -
4 Costa Smeralda Line 60 53 60 -7 0.5
5 Treasure Hunt 78 80 77 +3 0.0 -
6 Call Me The Breeze 88 63 78 -15 0.0 -
7 Margin Call 68 63 64 -1 0.5 -
8 Jet For Time 64 61 61 ✓ Match 0.5 -
9 Thrilla 64 53 61 -8 0.5 -
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