Official NHA Assessment

Race 4: CENTENARY SYNDICATE MAIDEN PLATE (For all Maidens)

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Line Horse
Tripping Thunder
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
9 / 12
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    Gimmeathrill         3    60.0    1    0.00     3.0   78    79           78    +0
2    Tripping Thunder     3    60.0    2    0.10     3.0   79    79           79    +0
3    Heritage Ridge       3    57.5    3    0.40     3.0   77    74           74    -3
4    Three Tigers         2    57.0    4    0.90     2.0   -     75           75    +75
5    Digby                2    60.0    5    2.15     2.0   -     81           81    +81
6    Rosa Osiria          3    57.5    6    2.65     3.0   70    74           74    +4
7    Future Prospect      3    57.5    7    3.90     3.0   -     74           74    +74
8    Beautiful Winter     3    60.0    8    4.30     3.0   68    79           79    +11
9    Eternal Diamond      2    57.0    9    9.30     2.0   -     75           75    +75
10   Peanut Pops          4    60.0    10   9.35     3.5   68    78           78    +10
11   Iko Iko              2    60.5    11   37.35    2.0   81    82           82    +1
99   Fleur De Ville       3    57.5    99   0.00     3.0   -     74           74    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Gimmeathrill 78 73 78 -5 3.0 -
2 Tripping Thunder Line 79 85 79 +6 3.0
3 Heritage Ridge 77 59 74 -15 3.0 -
4 Three Tigers - 96 75 +21 2.0 -
5 Digby - 77 81 -4 2.0 -
6 Rosa Osiria 70 57 74 -17 3.0 -
7 Future Prospect - 58 74 -16 3.0 -
8 Beautiful Winter 68 68 79 -11 3.0 -
9 Eternal Diamond - 74 75 -1 2.0 -
10 Peanut Pops 68 64 78 -14 3.5 -
11 Iko Iko 81 76 82 -6 2.0 -
99 Fleur De Ville - 60 74 -14 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