Official NHA Assessment

Race 7: TABONLINE MIDDLE STAKES (For horses with nett rating of 89 and below)

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Line Horse
Sun Dazed
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    Surjay               3    58.0    1    0.00     3.0   87    82           82    -5
2    Sun Dazed            6    54.0    2    2.25     0.0   80    80           80    +0
3    Transact             3    56.0    3    2.30     3.0   85    78           78    -7
4    Kalahari Ferrari     3    58.0    4    3.55     3.0   87    82           82    -5
5    Tizona               3    54.5    5    3.75     3.0   81    75           75    -6
6    Axl                  3    52.0    6    4.05     3.0   75    70           70    -5
7    Captain Dizzy        4    54.0    7    4.10     3.5   78    73           73    -5
8    Bluff On Bluff       3    52.0    8    5.10     3.0   77    70           70    -7
9    Mister Vargus        5    61.0    9    5.50     0.0   92    94           94    +2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Surjay 87 121 82 +39 3.0 -
2 Sun Dazed Line 80 64 80 -16 0.0
3 Transact 85 77 78 -1 3.0 -
4 Kalahari Ferrari 87 87 82 +5 3.0 -
5 Tizona 81 83 75 +8 3.0 -
6 Axl 75 84 70 +14 3.0 -
7 Captain Dizzy 78 96 73 +23 3.5 -
8 Bluff On Bluff 77 80 70 +10 3.0 -
9 Mister Vargus 92 90 94 -4 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