Official NHA Assessment

Race 6: RACING240 MIDDLE STAKES (For horses with nett rating of 105 and below)

Back to Race
Line Horse
Impact Investor
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
7 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Birthright           4    58.0    1    0.00     5.0   88    73           73    -15
2    Impact Investor      2    54.0    2    1.00     0.0   79    79           79    +0
3    Skittles Skies       3    58.0    3    2.90     8.0   88    69           78    -10
4    Soho Heartthrob      2    54.0    4    4.90     0.0   94    75           84    -10
5    Zip Code             3    53.5    5    5.20     8.0   84    58           74    -10
6    Molotov Cocktail     3    54.0    6    5.30     8.0   78    59           68    -10
7    Player               3    60.0    7    5.50     8.0   91    71           81    -10
8    Last Car To Pass     3    58.0    8    8.75     8.0   91    67           81    -10
9    Obsidian             3    62.0    9    14.00    8.0   94    75           84    -10
10   Daimyo               3    60.0    10   18.50    8.0   92    71           82    -10
99   Aladdin's Lamp       4    62.0    99   0.00     5.0   -     81           81    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Birthright 88 95 73 +22 5.0 -
2 Impact Investor Line 79 77 79 -2 0.0
3 Skittles Skies 88 96 78 +18 8.0 -
4 Soho Heartthrob 94 91 84 +7 0.0 -
5 Zip Code 84 77 74 +3 8.0 -
6 Molotov Cocktail 78 78 68 +10 8.0 -
7 Player 91 84 81 +3 8.0 -
8 Last Car To Pass 91 86 81 +5 8.0 -
9 Obsidian 94 97 84 +13 8.0 -
10 Daimyo 92 105 82 +23 8.0 -
99 Aladdin's Lamp - 106 81 +25 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