Official NHA Assessment

Race 4: WWW.TAB4RACING.COM MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Rosslyne
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
8 / 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    United Council       5    58.0    1    0.00     0.0   -     69           6     +6
2    On The Guest List    2    56.5    2    2.30     0.0   65    68           68    +3
3    Rosslyne             2    58.0    3    4.00     0.0   70    70           70    +0
4    Wild Forever         3    58.0    4    7.60     7.0   -     55           55    +55
5    Casino Gail          3    58.0    5    10.90    7.0   -     55           55    +55
6    Brazilian Storm      4    60.0    6    12.20    4.0   62    65           65    +3
7    Unapologetic         2    58.0    7    14.70    0.0   61    69           69    +8
8    Coffee In Brazil     3    58.0    8    22.20    7.0   -     55           55    +55
9    Ideal Heart          3    58.0    9    24.90    7.0   -     55           55    +55
10   Crusade's Pleasure   3    58.0    10   25.00    7.0   50    55           55    +5
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 United Council - 100 6 +94 0.0 -
2 On The Guest List 65 57 68 -11 0.0 -
3 Rosslyne Line 70 58 70 -12 0.0
4 Wild Forever - 70 55 +15 7.0 -
5 Casino Gail - 54 55 -1 7.0 -
6 Brazilian Storm 62 42 65 -23 4.0 -
7 Unapologetic 61 51 69 -18 0.0 -
8 Coffee In Brazil - 49 55 -6 7.0 -
9 Ideal Heart - 54 55 -1 7.0 -
10 Crusade's Pleasure 50 44 55 -11 7.0 -
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