Official NHA Assessment

Race 2: OFF THE RAILS MAIDEN PLATE (F & M) (For Maiden Fillies & Mares)

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Line Horse
Sea Cruise
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
7 / 10
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    Chelsea River        4    60.0    1    0.00     2.5   61    69           67    +6
2    Fearless Kitty       3    59.0    2    1.50     4.0   71    67           67    -4
3    Winter Melody        3    59.0    3    2.80     4.0   -     66           66    +66
4    Sea Cruise           3    59.0    4    4.50     4.0   64    64           64    +0
5    Tide Is High         3    59.0    5    4.70     4.0   65    64           64    -1
6    Pantea               3    59.0    6    8.80     4.0   67    64           64    -3
7    Zuri's Star          3    59.0    7    18.50    4.0   59    64           64    +5
8    Livigno              3    59.0    8    31.90    4.0   -     64           64    +64
99   Declare War          3    59.0    99   0.00     4.0   -     64           64    +0
99   Shesakinda Magic     3    59.0    99   0.00     4.0   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Chelsea River 61 64 67 -3 2.5 -
2 Fearless Kitty 71 67 67 ✓ Match 4.0 -
3 Winter Melody - 68 66 +2 4.0 -
4 Sea Cruise Line 64 58 64 -6 4.0
5 Tide Is High 65 57 64 -7 4.0 -
6 Pantea 67 57 64 -7 4.0 -
7 Zuri's Star 59 57 64 -7 4.0 -
8 Livigno - - 64 -64 4.0 -
99 Declare War - 49 64 -15 4.0 -
99 Shesakinda Magic - 58 64 -6 4.0 -
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