Official NHA Assessment

Race 3: TAB 4RACING APP MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

Line Horse
Tulip Tree
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
11 / 11
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    Tulip Tree           2    56.0    1    0.00     0.0   81    81           81    +0
2    Raratonga Rose       2    56.0    2    0.30     0.0   77    86           86    +9
3    I'm In Love          3    58.5    3    1.60     10.0  71    69           69    -2
4    Blue Eruption        2    56.0    4    3.90     0.0   64    82           82    +18
5    Sassy                2    56.0    5    4.90     0.0   68    81           81    +13
6    Lochranza            2    56.0    6    9.70     0.0   -     81           81    +81
7    Twice In Camden      3    60.0    7    9.75     10.0  -     69           69    +69
8    Graphene Aerogel     3    60.0    8    9.80     10.0  61    69           69    +8
9    Apache Fighter       4    60.0    9    12.50    7.0   -     75           75    +75
10   Princess Zee         2    56.0    10   29.00    0.0   -     81           81    +81
99   Three Bells          3    60.0    99   0.00     10.0  -     69           69    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tulip Tree Line 81 96 81 +15 0.0
2 Raratonga Rose 77 80 86 -6 0.0 -
3 I'm In Love 71 63 69 -6 10.0 -
4 Blue Eruption 64 69 82 -13 0.0 -
5 Sassy 68 55 81 -26 0.0 -
6 Lochranza - - 81 -81 0.0 -
7 Twice In Camden - 46 69 -23 10.0 -
8 Graphene Aerogel 61 59 69 -10 10.0 -
9 Apache Fighter - 81 75 +6 7.0 -
10 Princess Zee - 30 81 -51 0.0 -
99 Three Bells - 43 69 -26 10.0 -
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