Official NHA Assessment

Race 1: #THISISRACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Smelting
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
2 / 13
Within 2 points
Significant Diffs
9 / 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    Dame Twining         2    57.0    1    0.00     0.5   -     42           6     +6
2    Nellie Bly           2    57.0    2    0.25     0.5   -     42           42    +42
3    Beltway              3    60.0    3    3.00     1.5   59    46           49    -10
4    Southern Style       5    57.0    4    3.50     0.0   -     43           43    +43
5    Gaetana              3    60.0    5    4.75     1.5   35    46           46    +11
6    Smelting             7    60.0    6    4.85     0.0   49    49           49    +0
7    Future Thinker       3    60.0    7    7.50     1.5   53    46           46    -7
8    Bardolphia           2    57.0    8    9.25     0.5   -     42           42    +42
9    Belle Ombre          3    60.0    9    11.75    1.5   54    46           46    -8
10   Tanushas Star        2    57.0    10   12.75    0.5   -     42           42    +42
11   Miss Lily            2    57.0    11   16.25    0.5   -     42           42    +42
12   Rebels Cookie        2    57.0    12   17.00    0.5   -     42           42    +42
99   Mandalay             3    60.0    99   0.00     1.5   -     46           46    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dame Twining - 72 6 +66 0.5 -
2 Nellie Bly - 71 42 +29 0.5 -
3 Beltway 59 63 49 +14 1.5 -
4 Southern Style - 54 43 +11 0.0 -
5 Gaetana 35 26 46 -20 1.5 -
6 Smelting Line 49 52 49 +3 0.0
7 Future Thinker 53 44 46 -2 1.5 -
8 Bardolphia - 50 42 +8 0.5 -
9 Belle Ombre 54 50 46 +4 1.5 -
10 Tanushas Star - 40 42 -2 0.5 -
11 Miss Lily - - 42 -42 0.5 -
12 Rebels Cookie - - 42 -42 0.5 -
99 Mandalay - 53 46 +7 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