Official NHA Assessment

Race 4: WSB Spin with the Best MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Lemon Thyme
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    Greenlight Skye      3    60.0    1    0.00     1.5   76    72           72    -4
2    Lemon Thyme          3    60.0    2    5.90     1.5   72    72           72    +0
3    Baltic Assayer       2    57.5    3    6.30     0.0   67    70           70    +3
4    Roy's Grace          4    60.0    4    7.70     0.5   65    74           74    +9
5    Takatalvi            3    60.0    5    9.50     1.5   71    72           72    +1
6    World Chorus         2    56.0    6    15.80    0.0   -     67           67    +67
7    Take Note            2    60.0    7    16.50    0.0   61    75           75    +14
8    Che Signora          3    60.0    8    19.00    1.5   -     72           72    +72
99   Another Dream        3    60.0    99   0.00     1.5   -     72           72    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Greenlight Skye 76 63 72 -9 1.5 -
2 Lemon Thyme Line 72 62 72 -10 1.5
3 Baltic Assayer 67 53 70 -17 0.0 -
4 Roy's Grace 65 63 74 -11 0.5 -
5 Takatalvi 71 64 72 -8 1.5 -
6 World Chorus - 56 67 -11 0.0 -
7 Take Note 61 58 75 -17 0.0 -
8 Che Signora - 50 72 -22 1.5 -
99 Another Dream - 89 72 +17 1.5 -
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