Official NHA Assessment

Race 6: WILGERBOSDRIFT GAUTENG FILLIES GUINEAS (Grade 2) (3yo Fillies (1st Leg Wilgerbosdrift SA Triple Tiara))

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Line Horse
Feather Boa
Reference for assessment
Exact Matches
0 / 15
Calculated = Official
Close Matches
2 / 15
Within 2 points
Significant Diffs
11 / 15
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    Lady Of Power        2    60.0    1    0.00     0.0   91    108          97    +6
2    Feather Boa          2    60.0    2    0.25     0.0   108   108          108   +0
3    Reny                 2    60.0    3    1.50     0.0   86    111          111   +25
4    Emirate Gina         2    60.0    4    2.00     0.0   99    111          111   +12
5    Gimme A Shot         2    60.0    5    2.05     0.0   112   111          111   -1
6    Bless My Stars       2    60.0    6    2.75     0.0   101   110          110   +9
7    Miss Cool            2    60.0    7    2.80     0.0   103   110          110   +7
8    Tipsy Tarragon       2    60.0    8    3.50     0.0   95    109          109   +14
9    Bonete               3    60.0    9    5.50     4.0   97    100          100   +3
10   Kinky Boots          3    60.0    10   7.00     4.0   82    100          100   +18
11   Rock The Fox         2    60.0    11   7.75     0.0   102   108          108   +6
12   Orarari Gold         2    60.0    12   9.25     0.0   101   108          108   +7
13   Tried And True       5    60.0    13   15.00    0.0   78    108          108   +30
14   Moraine              2    60.0    14   17.25    0.0   88    108          108   +20
15   United Council       5    60.0    15   21.50    0.0   90    108          108   +18
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lady Of Power 91 100 97 +3 0.0 -
2 Feather Boa Line 108 114 108 +6 0.0
3 Reny 86 91 111 -20 0.0 -
4 Emirate Gina 99 103 111 -8 0.0 -
5 Gimme A Shot 112 110 111 -1 0.0 -
6 Bless My Stars 101 119 110 +9 0.0 -
7 Miss Cool 103 106 110 -4 0.0 -
8 Tipsy Tarragon 95 108 109 -1 0.0 -
9 Bonete 97 85 100 -15 4.0 -
10 Kinky Boots 82 74 100 -26 4.0 -
11 Rock The Fox 102 94 108 -14 0.0 -
12 Orarari Gold 101 101 108 -7 0.0 -
13 Tried And True 78 75 108 -33 0.0 -
14 Moraine 88 87 108 -21 0.0 -
15 United Council 90 100 108 -8 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