Official NHA Assessment

Race 2: HAPPY VALENTINES DAY FROM RACE COAST MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Iona Castle
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
7 / 11
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    Peaches And Cream    2    60.0    1    0.00     0.0   72    80           78    +6
2    Theleia              3    60.0    2    0.75     3.0   76    78           78    +2
3    Iona Castle          3    60.0    3    1.75     3.0   77    77           77    +0
4    Hazel Green          2    60.0    4    1.95     0.0   78    83           83    +5
5    Redlight Lane        3    60.0    5    2.15     3.0   76    77           77    +1
6    See The Sign         3    60.0    6    3.90     3.0   44    75           75    +31
7    Nicci's Law          2    60.0    7    5.15     0.0   73    80           80    +7
8    Elisa Mbali          3    60.0    8    5.45     3.0   71    74           74    +3
9    Chihiro              2    60.0    9    8.70     0.0   62    80           80    +18
10   Half Full            2    60.0    10   9.95     0.0   64    80           80    +16
11   Arkansas State       3    60.0    11   12.20    3.0   -     74           74    +74
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Peaches And Cream 72 79 78 +1 0.0 -
2 Theleia 76 76 78 -2 3.0 -
3 Iona Castle Line 77 79 77 +2 3.0
4 Hazel Green 78 74 83 -9 0.0 -
5 Redlight Lane 76 73 77 -4 3.0 -
6 See The Sign 44 54 75 -21 3.0 -
7 Nicci's Law 73 66 80 -14 0.0 -
8 Elisa Mbali 71 67 74 -7 3.0 -
9 Chihiro 62 60 80 -20 0.0 -
10 Half Full 64 60 80 -20 0.0 -
11 Arkansas State - 48 74 -26 3.0 -
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