Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Simply Magic
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
3 / 13
Within 2 points
Significant Diffs
8 / 13
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    Fly Isabella Fly     3    59.0    1    0.00     7.5   -     63           6     +6
2    Camerata             2    59.0    2    1.00     5.0   66    68           68    +2
3    Simply Magic         3    60.0    3    1.20     7.5   65    65           65    +0
4    Memorial Day         2    59.0    4    2.45     5.0   75    68           68    -7
5    African Tune         4    60.0    5    2.95     9.0   55    62           62    +7
6    Greenlightranger     3    59.0    6    9.45     7.5   -     63           63    +63
7    Summer Of Dreams     2    59.0    7    10.70    5.0   67    68           68    +1
8    Kabuki Mo            3    59.0    8    10.80    7.5   -     63           63    +63
9    Alabama Storm        2    59.0    9    11.30    5.0   -     68           68    +68
10   Fiery Cliffs         3    59.0    10   11.55    7.5   -     63           63    +63
11   Trail Breaker        3    59.0    11   16.05    7.5   -     63           63    +63
12   Percussionist        2    59.0    12   99.99    5.0   -     68           68    +68
99   Ultima Ictu          2    59.0    99   0.00     5.0   -     68           68    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Fly Isabella Fly - 74 6 +68 7.5 -
2 Camerata 66 49 68 -19 5.0 -
3 Simply Magic Line 65 67 65 +2 7.5
4 Memorial Day 75 49 68 -19 5.0 -
5 African Tune 55 60 62 -2 9.0 -
6 Greenlightranger - 63 63 ✓ Match 7.5 -
7 Summer Of Dreams 67 65 68 -3 5.0 -
8 Kabuki Mo - - 63 -63 7.5 -
9 Alabama Storm - 47 68 -21 5.0 -
10 Fiery Cliffs - 60 63 -3 7.5 -
11 Trail Breaker - - 63 -63 7.5 -
12 Percussionist - 53 68 -15 5.0 -
99 Ultima Ictu - 60 68 -8 5.0 -
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