Official NHA Assessment

Race 5: TAB 4RACING APP MAIDEN PLATE (For all Maidens)

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Line Horse
Trombolines
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    Trombolines          3    59.0    1    0.00     5.0   -     -            -     +0
2    Reece's Wish         3    56.0    2    1.30     5.0   -     -3           -     +0
3    Le Turbo             2    59.0    3    1.80     0.0   70    13           60    -10
4    Knowmore             3    59.0    4    3.50     5.0   -     1            1     +1
5    Jabberwocky          4    60.0    5    7.80     3.0   62    6            52    -10
6    World Wonderer       3    59.0    6    10.30    5.0   -     -            -     +0
7    New Life             3    60.0    7    22.30    5.0   43    2            33    -10
8    Jawbreaker           3    59.0    8    23.30    5.0   -     -            -     +0
99   Stay Tuned           3    60.0    99   0.00     5.0   -     2            2     +0
99   Red Sunrise          3    59.0    99   0.00     5.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Trombolines Line - 87 - +87 5.0
2 Reece's Wish - 82 - +82 5.0 -
3 Le Turbo 70 79 60 +19 0.0 -
4 Knowmore - 76 1 +75 5.0 -
5 Jabberwocky 62 53 52 +1 3.0 -
6 World Wonderer - 64 - +64 5.0 -
7 New Life 43 38 33 +5 5.0 -
8 Jawbreaker - 62 - +62 5.0 -
99 Stay Tuned - 71 2 +69 5.0 -
99 Red Sunrise - 79 - - 5.0 -
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