Official NHA Assessment

Race 2: WSB SPINA WINA MAIDEN PLATE (All Maidens.R40000 Win bonus ROA Members)

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Line Horse
Giocatore
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
6 / 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    Back In Business     3    60.0    1    0.00     4.5   -     65           6     +6
2    Rockingthetimeaway   3    57.5    2    0.10     4.5   59    60           60    +1
3    Giocatore            2    60.0    3    4.50     3.0   68    68           68    +0
4    Activator            3    60.0    4    10.75    4.5   -     65           65    +65
5    Jitterbugger         3    60.0    5    10.80    4.5   -     65           65    +65
6    Edward Rye (ARG)     3    60.0    6    11.00    4.5   -     65           65    +65
7    Full Go              6    60.0    7    17.00    0.0   61    74           74    +13
8    African Twilight     3    60.0    8    38.00    4.5   -     65           65    +65
99   Black Egret          3    60.0    99   0.00     4.5   -     65           65    +0
99   Elusive Justice      3    60.0    99   0.00     4.5   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Back In Business - 114 6 +108 4.5 -
2 Rockingthetimeaway 59 62 60 +2 4.5 -
3 Giocatore Line 68 67 68 -1 3.0
4 Activator - 66 65 +1 4.5 -
5 Jitterbugger - 56 65 -9 4.5 -
6 Edward Rye (ARG) - 87 65 +22 4.5 -
7 Full Go 61 59 74 -15 0.0 -
8 African Twilight - 52 65 -13 4.5 -
99 Black Egret - 90 65 +25 4.5 -
99 Elusive Justice - 61 65 -4 4.5 -
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