Official NHA Assessment

Race 3: #YOUCANBETONUS! MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Master'S Rose
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
3 / 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    Master'S Rose        3    60.0    1    0.00     1.5   68    68           68    +0
2    Onward               2    56.0    2    0.60     0.0   -     68           68    +68
3    Global Royalty       2    60.0    3    1.00     0.0   64    75           75    +11
4    Oh La Amour          3    60.0    4    1.75     1.5   -     71           71    +71
5    Life And Letters     2    60.0    5    3.50     0.0   69    72           72    +3
6    Nicolson Landing     3    60.0    6    4.75     1.5   73    68           68    -5
7    Devious Looks        3    60.0    7    5.35     1.5   -     68           68    +68
8    Purple Rain          3    60.0    8    7.35     1.5   71    68           68    -3
99   Heavenly Lace        2    56.0    99   0.00     0.0   -     63           63    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Master'S Rose Line 68 68 68 ✓ Match 1.5
2 Onward - - 68 - 0.0 -
3 Global Royalty 64 66 75 -9 0.0 -
4 Oh La Amour - - 71 -71 1.5 -
5 Life And Letters 69 67 72 -5 0.0 -
6 Nicolson Landing 73 71 68 +3 1.5 -
7 Devious Looks - - 68 -68 1.5 -
8 Purple Rain 71 66 68 -2 1.5 -
99 Heavenly Lace - - 63 - 0.0 -
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