Official NHA Assessment

Race 6: RACING240 MIDDLE STAKES (F & M) (For fillies & mares with nett rating of 92 and below)

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Line Horse
Alfred's Girl
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
4 / 7
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    Golden Dah           4    58.0    1    0.00     1.0   79    71           71    -8
2    Jasmine              4    60.0    2    0.40     1.0   82    80           80    -2
3    Parisienne Girl      3    54.0    3    1.90     2.0   68    64           64    -4
4    Alfred's Girl        7    56.0    4    1.95     0.0   72    72           72    +0
5    Fynbos               5    58.0    5    4.95     0.0   76    73           73    -3
6    Just Power           3    54.0    6    12.20    2.0   61    61           61    +0
99   Costa Smeralda       3    54.0    99   0.00     2.0   -     61           61    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Golden Dah 79 84 71 +13 1.0 -
2 Jasmine 82 81 80 +1 1.0 -
3 Parisienne Girl 68 62 64 -2 2.0 -
4 Alfred's Girl Line 72 65 72 -7 0.0
5 Fynbos 76 76 73 +3 0.0 -
6 Just Power 61 48 61 -13 2.0 -
99 Costa Smeralda - 53 61 -8 2.0 -
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