Official NHA Assessment

Race 5: 4RACING.TV MR 80 HANDICAP (Open)

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Line Horse
Corvette Captain
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
9 / 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    Rollwiththepunches   6    59.5    1    0.00     0.0   82    79           82    +0
2    Corvette Captain     5    55.0    2    6.75     0.0   70    70           70    +0
3    Super Agra           4    59.0    3    7.75     0.0   86    78           78    -8
4    Moya Wa Laliga       3    57.5    4    8.75     2.5   78    70           70    -8
5    Vegas Hi Rise        6    60.5    5    9.25     0.0   84    81           81    -3
6    Samuel Salt          3    56.5    6    10.50    2.5   76    68           68    -8
7    Sequoia              6    58.5    7    10.75    0.0   80    77           77    -3
8    Song Of Liberty      3    52.0    8    15.50    2.5   65    59           59    -6
9    Bridge Of Spies      6    52.0    9    15.75    0.0   50    64           64    +14
10   Another Thief        3    57.5    10   16.00    2.5   78    70           70    -8
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rollwiththepunches 82 90 82 +8 0.0 -
2 Corvette Captain Line 70 75 70 +5 0.0
3 Super Agra 86 60 78 -18 0.0 -
4 Moya Wa Laliga 78 81 70 +11 2.5 -
5 Vegas Hi Rise 84 71 81 -10 0.0 -
6 Samuel Salt 76 82 68 +14 2.5 -
7 Sequoia 80 99 77 +22 0.0 -
8 Song Of Liberty 65 52 59 -7 2.5 -
9 Bridge Of Spies 50 48 64 -16 0.0 -
10 Another Thief 78 78 70 +8 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