Official NHA Assessment

Race 3: BETWAY SUMMER CUP 26 NOVEMBER MR 70 HANDICAP (Open)

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Line Horse
Stormy Seas
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    Dancing Dora         6    59.0    1    0.00     0.0   68    86           68    +0
2    Stormy Seas          4    61.0    2    0.75     9.0   72    72           72    +0
3    Back To Basics       3    56.5    3    1.05     7.5   63    66           66    +3
4    Quick Run            4    50.0    4    1.45     9.0   58    50           50    -8
5    Bridge Of Spies      6    52.0    5    3.45     0.0   48    72           72    +24
6    Tangerine Pearl      2    54.5    6    4.70     5.0   72    67           67    -5
7    Mercer Girl          6    52.0    7    5.90     0.0   51    72           72    +21
8    Clean Living         2    58.0    8    12.40    5.0   76    74           74    -2
9    Freedom Dancer       4    52.0    9    25.90    9.0   50    54           54    +4
99   Great Times          3    58.0    99   0.00     7.5   -     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 Dancing Dora 68 53 68 -15 0.0 -
2 Stormy Seas Line 72 77 72 +5 9.0
3 Back To Basics 63 72 66 +6 7.5 -
4 Quick Run 58 61 50 +11 9.0 -
5 Bridge Of Spies 48 48 72 -24 0.0 -
6 Tangerine Pearl 72 58 67 -9 5.0 -
7 Mercer Girl 51 53 72 -19 0.0 -
8 Clean Living 76 61 74 -13 5.0 -
9 Freedom Dancer 50 40 54 -14 9.0 -
99 Great Times - 54 69 -15 7.5 -
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