Official NHA Assessment

Race 3: TOTE FOR THE WIN PROGRESS PLATE (For Maidens & 1, 2 & 3 time winners)

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Line Horse
Go Grayson Go
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
6 / 9
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    Master Josh          2    59.0    1    0.00     0.0   88    111          94    +6
2    Go Grayson Go        3    55.5    2    0.80     8.5   91    91           91    +0
3    Down By The River    2    60.5    3    1.10     0.0   80    118          118   +38
4    Solar Sail           3    58.5    4    2.20     8.5   115   96           105   -10
5    Top Gun              3    54.0    5    4.20     8.5   75    85           85    +10
6    Coppola              4    55.5    6    4.50     6.0   70    92           92    +22
7    Run The World        3    53.0    7    8.30     8.5   71    82           82    +11
8    Beach Palace         4    61.5    8    14.10    6.0   70    104          104   +34
99   Two Miles West       3    61.5    99   0.00     8.5   -     99           99    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Master Josh 88 97 94 +3 0.0 -
2 Go Grayson Go Line 91 95 91 +4 8.5
3 Down By The River 80 95 118 -23 0.0 -
4 Solar Sail 115 109 105 +4 8.5 -
5 Top Gun 75 71 85 -14 8.5 -
6 Coppola 70 83 92 -9 6.0 -
7 Run The World 71 60 82 -22 8.5 -
8 Beach Palace 70 67 104 -37 6.0 -
99 Two Miles West - 93 99 -6 8.5 -
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