Official NHA Assessment

Race 1: WSB WELCOMES YOU WORK RIDERS MAIDEN PLATE (For Maidens)

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Line Horse
House Of Sussex
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
3 / 12
Within 2 points
Significant Diffs
5 / 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    House Of Sussex      4    60.0    1    0.00     0.0   59    59           59    +0
2    Flight Engineer      3    60.0    2    0.10     2.5   66    54           56    -10
3    Star Trooper         3    60.0    3    4.35     2.5   -     54           54    +54
4    Fantasy Girl         2    57.5    4    4.85     1.5   67    51           57    -10
5    Summer Heat          3    57.5    5    4.95     2.5   47    49           49    +2
6    Trillion Dreams      5    57.5    6    5.45     0.0   40    54           54    +14
7    Stand Up             3    60.5    7    5.95     2.5   45    55           55    +10
8    Smart View           4    60.0    8    8.45     0.0   48    59           59    +11
9    Epic Thunder         3    60.0    9    9.70     2.5   -     54           54    +54
10   Dynamite Jet         6    60.0    10   10.45    0.0   47    59           59    +12
11   Darling Girl         2    57.5    11   10.95    1.5   59    51           51    -8
12   Greedanddesire       4    57.5    12   28.20    0.0   50    54           54    +4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 House Of Sussex Line 59 50 59 -9 0.0
2 Flight Engineer 66 58 56 +2 2.5 -
3 Star Trooper - 51 54 -3 2.5 -
4 Fantasy Girl 67 58 57 +1 1.5 -
5 Summer Heat 47 47 49 -2 2.5 -
6 Trillion Dreams 40 45 54 -9 0.0 -
7 Stand Up 45 62 55 +7 2.5 -
8 Smart View 48 46 59 -13 0.0 -
9 Epic Thunder - 49 54 -5 2.5 -
10 Dynamite Jet 47 43 59 -16 0.0 -
11 Darling Girl 59 54 51 +3 1.5 -
12 Greedanddesire 50 50 54 -4 0.0 -
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