Official NHA Assessment

Race 2: TAB 4RACING APP MAIDEN PLATE (For all Maidens)

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Line Horse
Clap Of Thunder
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    Atticus Finch        5    57.0    1    0.00     0.0   -     79           6     +6
2    Central City         5    57.0    2    1.75     0.0   -     82           82    +82
3    Clap Of Thunder      3    60.0    3    3.00     9.0   69    69           69    +0
4    Skyjet               2    57.0    4    3.50     0.0   -     80           80    +80
5    Global Breeze        2    57.0    5    5.00     0.0   70    79           79    +9
6    Royal Raphael        3    55.5    6    7.25     9.0   -     58           58    +58
7    Just Proccie         2    57.0    7    9.25     0.0   68    79           79    +11
8    Tara Iti             4    60.0    8    13.00    7.0   40    71           71    +31
9    Jivko Draganov       3    60.0    9    28.00    9.0   50    67           67    +17
10   Plenty Of It         3    60.0    10   36.00    9.0   22    67           67    +45
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Atticus Finch - 127 6 +121 0.0 -
2 Central City - 81 82 -1 0.0 -
3 Clap Of Thunder Line 69 66 69 -3 9.0
4 Skyjet - 57 80 -23 0.0 -
5 Global Breeze 70 75 79 -4 0.0 -
6 Royal Raphael - 54 58 -4 9.0 -
7 Just Proccie 68 67 79 -12 0.0 -
8 Tara Iti 40 52 71 -19 7.0 -
9 Jivko Draganov 50 50 67 -17 9.0 -
10 Plenty Of It 22 22 67 -45 9.0 -
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