Official NHA Assessment

Race 3: WWW.TAB4RACING.COM PROGRESS PLATE (1,2 & 3 time winners)

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Line Horse
Pyromaniac
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
5 / 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    Gimme A Shot         2    57.5    1    0.00     0.0   106   90           90    -16
2    Slinky Mapimpi       5    58.0    2    0.50     0.0   88    96           96    +8
3    Royal Edition        4    54.0    3    0.55     2.0   85    84           84    -1
4    Pyromaniac           6    60.5    4    0.70     0.0   101   101          101   +0
5    Billy Bowlegs        5    61.0    5    1.50     0.0   117   100          107   -10
6    Home Of The Brave    2    60.5    6    2.25     0.0   92    99           99    +7
7    House Of Romanov     2    57.5    7    4.25     0.0   93    91           91    -2
8    Jordan               4    54.5    8    9.00     2.0   93    80           83    -10
9    Chrome Tourmaline    4    58.0    9    15.25    2.0   98    87           88    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Gimme A Shot 106 110 90 +20 0.0 -
2 Slinky Mapimpi 88 101 96 +5 0.0 -
3 Royal Edition 85 92 84 +8 2.0 -
4 Pyromaniac Line 101 71 101 -30 0.0
5 Billy Bowlegs 117 104 107 -3 0.0 -
6 Home Of The Brave 92 97 99 -2 0.0 -
7 House Of Romanov 93 81 91 -10 0.0 -
8 Jordan 93 88 83 +5 2.0 -
9 Chrome Tourmaline 98 107 88 +19 2.0 -
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