Official NHA Assessment

Race 3: RCV RUN MERIT RATED 75 HANDICAP (Open)

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Line Horse
Ono No Komachi
Reference for assessment
Exact Matches
0 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
4 / 8
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    Solartrip            3    58.0    1    0.00     7.0   72    70           72    +0
2    Ono No Komachi       3    54.0    2    2.50     7.0   64    64           64    +0
3    Empire Blue          4    58.0    3    4.25     3.5   71    78           78    +7
4    Street Art           3    61.5    4    8.25     7.0   78    77           77    -1
5    Power Ranger         7    57.5    5    9.25     0.0   70    83           83    +13
6    Aerial Display       5    58.0    6    13.25    0.0   71    84           84    +13
7    Karvani              7    57.5    7    15.00    0.0   70    83           83    +13
99   Shes Everything      3    57.5    99   0.00     7.0   -     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 Solartrip 72 77 72 +5 7.0 -
2 Ono No Komachi Line 64 66 64 +2 7.0
3 Empire Blue 71 71 78 -7 3.5 -
4 Street Art 78 78 77 +1 7.0 -
5 Power Ranger 70 69 83 -14 0.0 -
6 Aerial Display 71 68 84 -16 0.0 -
7 Karvani 70 73 83 -10 0.0 -
99 Shes Everything - 71 69 +2 7.0 -
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