Official NHA Assessment

Race 6: RACEHORSE OWNERS ASSOCIATION MIDDLE STAKES (For horses with nett rating of 101 and below)

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Line Horse
Trois Trois Quatre
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
5 / 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    Supreme Dance        4    56.0    1    0.00     2.5   86    83           83    -3
2    Trois Trois Quatre   5    56.0    2    0.25     0.0   88    88           88    +0
3    Twin Turbo           4    60.0    3    0.35     2.5   96    96           96    +0
4    Willow's Wish        4    60.0    4    1.10     2.5   94    95           95    +1
5    Mardi Gras           7    53.5    5    2.00     0.0   86    86           86    +0
6    Jet Dynasty          3    56.0    6    3.75     5.0   88    79           79    -9
7    Thunee Playa         4    50.0    7    3.80     2.5   80    72           72    -8
8    Presley              4    54.0    8    4.00     2.5   92    80           82    -10
9    Youcanthurrylove     5    56.0    9    8.50     0.0   87    88           88    +1
10   Eiffel Tower         4    56.0    10   9.50     2.5   96    83           86    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Supreme Dance 86 76 83 -7 2.5 -
2 Trois Trois Quatre Line 88 87 88 -1 0.0
3 Twin Turbo 96 88 96 -8 2.5 -
4 Willow's Wish 94 96 95 +1 2.5 -
5 Mardi Gras 86 83 86 -3 0.0 -
6 Jet Dynasty 88 82 79 +3 5.0 -
7 Thunee Playa 80 107 72 +35 2.5 -
8 Presley 92 90 82 +8 2.5 -
9 Youcanthurrylove 87 86 88 -2 0.0 -
10 Eiffel Tower 96 69 86 -17 2.5 -
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