Official NHA Assessment

Race 9: THE LEGEND PIERE STRIKER STRYDOM RODE THE PICK 6 IN JULY 1990 FM 76 HANDICAP (F & M) (For Fillies and Mares)

Line Horse
The Navy Lark
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
7 / 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    Time For Charity     5    52.5    1    0.00     0.0   61    73           61    +0
2    Deal Maker (GB)      3    57.0    2    0.75     1.5   73    79           79    +6
3    The Navy Lark        4    55.5    3    2.35     2.0   75    75           75    +0
4    Summer Winter        3    61.0    4    3.45     1.5   79    87           87    +8
5    Predatrice           3    56.0    5    3.95     1.5   72    77           77    +5
6    Misty Metal          3    56.5    6    5.45     1.5   70    78           78    +8
7    Micke's Bomb         4    56.0    7    5.65     2.0   68    76           76    +8
8    Waitforgreenlight    2    55.5    8    6.95     0.5   67    78           78    +11
9    Gaelic Dancer        3    56.0    9    11.25    1.5   69    77           77    +8
99   Global Thunder       4    63.5    99   0.00     2.0   -     91           91    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Time For Charity 61 61 61 ✓ Match 0.0 -
2 Deal Maker (GB) 73 77 79 -2 1.5 -
3 The Navy Lark Line 75 74 75 -1 2.0
4 Summer Winter 79 78 87 -9 1.5 -
5 Predatrice 72 67 77 -10 1.5 -
6 Misty Metal 70 71 78 -7 1.5 -
7 Micke's Bomb 68 60 76 -16 2.0 -
8 Waitforgreenlight 67 67 78 -11 0.5 -
9 Gaelic Dancer 69 64 77 -13 1.5 -
99 Global Thunder - 83 91 -8 2.0 -
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