Official NHA Assessment

Race 4: WWW.TAB4RACING.COM MR 86 HANDICAP (Open)

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Line Horse
Climate Control
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 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    Duke Of Sussex       4    60.0    1    0.00     4.0   86    92           86    +0
2    Climate Control      2    55.0    2    5.00     0.0   90    90           90    +0
3    Twin Turbo           4    53.5    3    7.50     4.0   76    79           79    +3
4    Montmerency          3    52.0    4    9.00     7.0   69    70           70    +1
5    Bey Suyay            4    60.5    5    9.50     4.0   87    93           93    +6
6    Captain Of Grit      3    56.5    6    9.75     7.0   79    79           79    +0
7    Forward Spell        3    55.0    7    10.75    7.0   76    76           76    +0
8    Kentallen Bay        2    54.0    8    11.00    0.0   88    88           88    +0
99   Zuzan                3    54.0    99   0.00     7.0   -     74           74    +0
99   Wolffs World         4    58.0    99   0.00     4.0   -     88           88    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Duke Of Sussex 86 96 86 +10 4.0 -
2 Climate Control Line 90 65 90 -25 0.0
3 Twin Turbo 76 88 79 +9 4.0 -
4 Montmerency 69 59 70 -11 7.0 -
5 Bey Suyay 87 84 93 -9 4.0 -
6 Captain Of Grit 79 84 79 +5 7.0 -
7 Forward Spell 76 64 76 -12 7.0 -
8 Kentallen Bay 88 90 88 +2 0.0 -
99 Zuzan - 98 74 +24 7.0 -
99 Wolffs World - 79 88 -9 4.0 -
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