Official NHA Assessment

Race 9: TAB 4RACING APP CLASSIFIED STAKES (For horses with nett rating of 75 and below)

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Line Horse
Twice As Wild
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
6 / 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    Boom Boom            4    60.0    1    0.00     6.0   73    59           59    -14
2    Prized Platinum      3    53.5    2    0.50     5.0   59    48           49    -10
3    Sail The Sky         4    57.5    3    0.80     6.0   65    54           55    -10
4    Twice As Wild        6    52.0    4    1.20     0.0   55    55           55    +0
5    Written In Stone     9    55.5    5    1.50     0.0   62    62           62    +0
6    Take Your Place      3    58.0    6    2.75     5.0   78    57           68    -10
7    Gimme The Flame      5    52.0    7    3.50     0.0   54    55           55    +1
8    Hammies Hero         2    59.5    8    4.60     3.5   71    63           63    -8
9    Time For Charity     5    52.0    9    7.80     0.0   57    55           55    -2
99   Midnight Fusion      4    60.0    99   0.00     6.0   -     59           59    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Boom Boom 73 81 59 +22 6.0 -
2 Prized Platinum 59 72 49 +23 5.0 -
3 Sail The Sky 65 62 55 +7 6.0 -
4 Twice As Wild Line 55 51 55 -4 0.0
5 Written In Stone 62 67 62 +5 0.0 -
6 Take Your Place 78 70 68 +2 5.0 -
7 Gimme The Flame 54 50 55 -5 0.0 -
8 Hammies Hero 71 69 63 +6 3.5 -
9 Time For Charity 57 61 55 +6 0.0 -
99 Midnight Fusion - 67 59 +8 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