Official NHA Assessment

Race 3: RACING240 FOR RACING. FOR YOU MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Ambitious Lady
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
2 / 8
Within 2 points
Significant Diffs
4 / 8
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    Silky Jet            4    60.0    1    0.00     7.0   58    67           64    +6
2    Ambitious Lady       3    60.0    2    3.25     10.0  64    64           64    +0
3    Hat's Lady           4    60.0    3    8.50     7.0   58    67           67    +9
4    Sienna Rae           2    56.0    4    9.50     0.0   -     73           73    +73
5    Captains Clover      2    56.0    5    10.75    0.0   63    73           73    +10
6    Quello Che           3    53.5    6    15.75    10.0  72    48           62    -10
7    Plum Blossom         3    60.0    7    20.75    10.0  65    61           61    -4
8    Enchanted Royal      3    60.0    8    25.75    10.0  57    61           61    +4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Silky Jet 58 61 64 -3 7.0 -
2 Ambitious Lady Line 64 62 64 -2 10.0
3 Hat's Lady 58 64 67 -3 7.0 -
4 Sienna Rae - 57 73 -16 0.0 -
5 Captains Clover 63 54 73 -19 0.0 -
6 Quello Che 72 61 62 -1 10.0 -
7 Plum Blossom 65 53 61 -8 10.0 -
8 Enchanted Royal 57 49 61 -12 10.0 -
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