Official NHA Assessment

Race 3: WWW.TAB4RACING.COM MR 74 HANDICAP (Open)

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Line Horse
Run For Cover
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
6 / 9
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    Circus Lights        5    53.0    1    0.00     0.0   63    60           63    +0
2    Samthewiseman        5    53.0    2    1.20     0.0   60    60           60    +0
3    Run For Cover        5    57.5    3    2.00     0.0   69    69           69    +0
4    Max The Otter        2    59.5    4    3.00     3.5   73    66           66    -7
5    Simply Magic         3    54.0    5    3.80     5.0   67    52           57    -10
6    Turbo Power          3    60.0    6    4.50     5.0   77    64           67    -10
7    Pendragon            5    55.0    7    6.50     0.0   72    64           64    -8
8    Mescal               2    55.5    8    7.25     3.5   73    58           63    -10
9    Boom Boom            4    56.0    9    12.75    6.0   81    54           71    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Circus Lights 63 64 63 +1 0.0 -
2 Samthewiseman 60 52 60 -8 0.0 -
3 Run For Cover Line 69 70 69 +1 0.0
4 Max The Otter 73 72 66 +6 3.5 -
5 Simply Magic 67 67 57 +10 5.0 -
6 Turbo Power 77 83 67 +16 5.0 -
7 Pendragon 72 73 64 +9 0.0 -
8 Mescal 73 64 63 +1 3.5 -
9 Boom Boom 81 81 71 +10 6.0 -
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