Official NHA Assessment

Race 7: RACING240 CLASSIFIED STAKES (For horses with nett rating of 75 and below)

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Line Horse
Impact Investor
Reference for assessment
Exact Matches
2 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
6 / 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    Unsolved Riddle      3    60.0    1    0.00     1.0   74    70           70    -4
2    Impact Investor      2    60.0    2    0.30     0.0   77    77           77    +0
3    Rosy Lemon           5    56.0    3    5.50     0.0   69    64           64    -5
4    Lava County          2    58.0    4    5.75     0.0   87    68           77    -10
5    Spy Story            3    58.0    5    8.25     1.0   73    66           66    -7
6    Sail The Sky         4    58.0    6    8.85     0.5   69    67           67    -2
7    Fushimi Inari        2    58.0    7    14.10    0.0   71    68           68    -3
8    Lapis Lazuli         3    58.0    8    14.60    1.0   76    66           66    -10
99   Sheets And Goggles   3    52.0    99   0.00     1.0   -     54           54    +0
99   Irish Love           4    56.0    99   0.00     0.5   -     63           63    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Unsolved Riddle 74 77 70 +7 1.0 -
2 Impact Investor Line 77 77 77 ✓ Match 0.0
3 Rosy Lemon 69 72 64 +8 0.0 -
4 Lava County 87 87 77 +10 0.0 -
5 Spy Story 73 66 66 ✓ Match 1.0 -
6 Sail The Sky 69 62 67 -5 0.5 -
7 Fushimi Inari 71 53 68 -15 0.0 -
8 Lapis Lazuli 76 59 66 -7 1.0 -
99 Sheets And Goggles - 63 54 +9 1.0 -
99 Irish Love - 67 63 +4 0.5 -
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