Official NHA Assessment

Race 4: WWW.TAB4RACING.COM MAIDEN PLATE (A) (For all Maidens)

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Line Horse
Taxhaven
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
7 / 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    Thunee Playa         4    58.0    1    0.00     3.0   80    71           70    -10
2    To The Rescue        4    58.0    2    1.15     3.0   75    77           77    +2
3    Taxhaven             4    58.0    3    1.25     3.0   77    77           77    +0
4    Dark Silver          4    58.0    4    4.00     3.0   -     73           73    +73
5    Judgement Day        3    58.0    5    5.50     6.0   77    65           67    -10
6    Callaburn            2    58.0    6    6.00     0.0   73    77           77    +4
7    Master Tik Tok       5    60.0    7    7.00     0.0   74    81           81    +7
8    Kamala Hill          3    58.0    8    18.00    6.0   -     65           65    +65
9    Hephaestus           3    60.0    9    99.99    6.0   10    69           69    +59
10   Festival Of Magic    4    58.0    10   99.99    3.0   78    71           71    -7
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Thunee Playa 80 107 70 +37 3.0 -
2 To The Rescue 75 82 77 +5 3.0 -
3 Taxhaven Line 77 96 77 +19 3.0
4 Dark Silver - 84 73 +11 3.0 -
5 Judgement Day 77 90 67 +23 6.0 -
6 Callaburn 73 52 77 -25 0.0 -
7 Master Tik Tok 74 80 81 -1 0.0 -
8 Kamala Hill - 39 65 -26 6.0 -
9 Hephaestus 10 10 69 -59 6.0 -
10 Festival Of Magic 78 67 71 -4 3.0 -
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