Official NHA Assessment

Race 5: CLASSIFIED STAKES (For horses with nett rating of 81 and below)

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Line Horse
Differentiate
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 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    Shesalegend          4    53.0    1    0.00     1.0   68    62           62    -6
2    Differentiate        5    51.0    2    3.50     0.0   61    61           61    +0
3    Magic Vision         5    58.0    3    4.75     0.0   70    74           74    +4
4    Enrapture            5    59.0    4    6.50     0.0   78    76           76    -2
5    Tulip Way            5    57.0    5    6.75     0.0   77    72           72    -5
6    Magic Mike           6    60.0    6    7.75     0.0   77    78           78    +1
7    Kursk (AUS)          6    56.0    7    7.85     0.0   68    70           70    +2
8    Deposition           6    54.0    8    16.85    0.0   64    66           66    +2
9    Red Pollard          6    56.0    9    20.35    0.0   67    70           70    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Shesalegend 68 74 62 +12 1.0 -
2 Differentiate Line 61 72 61 +11 0.0
3 Magic Vision 70 64 74 -10 0.0 -
4 Enrapture 78 82 76 +6 0.0 -
5 Tulip Way 77 80 72 +8 0.0 -
6 Magic Mike 77 67 78 -11 0.0 -
7 Kursk (AUS) 68 67 70 -3 0.0 -
8 Deposition 64 68 66 +2 0.0 -
9 Red Pollard 67 67 70 -3 0.0 -
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