Official NHA Assessment

Race 7: TAB SEA COTTAGE STAKES (Grade 3) (3 year olds)

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Line Horse
Donna Mo
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
0 / 13
Within 2 points
Significant Diffs
11 / 13
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    La Moohal            4    60.0    1    0.00     0.5   90    97           96    +6
2    Greeting My Master   2    60.0    2    1.00     0.0   95    102          102   +7
3    Donna Mo             2    57.5    3    4.00     0.0   94    94           94    +0
4    Presley              4    60.0    4    4.75     0.5   98    97           97    -1
5    Hotarubi             4    60.0    5    5.25     0.5   116   97           106   -10
6    Claw                 4    60.0    6    5.75     0.5   82    97           97    +15
7    Jordan               4    60.0    7    7.00     0.5   97    97           97    +0
8    Mastership           2    60.0    8    7.25     0.0   93    98           98    +5
9    Jury's Out           2    60.0    9    10.50    0.0   94    98           98    +4
10   Eiffel Tower         4    60.0    10   26.50    0.5   92    97           97    +5
11   Biofarmer            4    60.0    11   29.00    0.5   99    97           97    -2
12   Officer In Command   4    60.0    12   99.99    0.5   83    97           97    +14
99   Emporium             2    60.0    99   0.00     0.0   -     98           98    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 La Moohal 90 93 96 -3 0.5 -
2 Greeting My Master 95 110 102 +8 0.0 -
3 Donna Mo Line 94 89 94 -5 0.0
4 Presley 98 90 97 -7 0.5 -
5 Hotarubi 116 98 106 -8 0.5 -
6 Claw 82 91 97 -6 0.5 -
7 Jordan 97 88 97 -9 0.5 -
8 Mastership 93 105 98 +7 0.0 -
9 Jury's Out 94 85 98 -13 0.0 -
10 Eiffel Tower 92 69 97 -28 0.5 -
11 Biofarmer 99 78 97 -19 0.5 -
12 Officer In Command 83 86 97 -11 0.5 -
99 Emporium - 89 98 -9 0.0 -
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