Official NHA Assessment

Race 4: TAB TELEBET 0861 000 822 MAIDEN PLATE (For all Maidens)

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Line Horse
Archimides
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 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    Fog Bank             2    60.0    1    0.00     0.0   -     8            6     +6
2    Archimides           3    60.0    2    0.90     6.0   -     -            -     +0
3    Godfather            2    60.0    3    4.00     0.0   67    9            57    -10
4    Cash Slip            2    60.0    4    4.10     0.0   62    9            52    -10
5    Magic Prince         2    60.0    5    5.50     0.0   -     8            8     +8
6    To The King          3    60.0    6    7.00     6.0   64    -4           54    -10
7    Pedasos              3    60.0    7    10.25    6.0   -     -4           -     +0
8    Secret Reef          3    60.0    8    12.50    6.0   -     -4           -     +0
9    Paschals Njaro       3    60.0    9    20.00    6.0   -     -4           -     +0
10   Stalker              3    60.0    10   30.00    6.0   47    -4           37    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Fog Bank - 75 6 +69 0.0 -
2 Archimides Line - 70 - +70 6.0
3 Godfather 67 57 57 ✓ Match 0.0 -
4 Cash Slip 62 58 52 +6 0.0 -
5 Magic Prince - 66 8 +58 0.0 -
6 To The King 64 66 54 +12 6.0 -
7 Pedasos - 53 - +53 6.0 -
8 Secret Reef - 50 - +50 6.0 -
9 Paschals Njaro - 35 - +35 6.0 -
10 Stalker 47 41 37 +4 6.0 -
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