Official NHA Assessment

Race 5: HSH PRINCESS CHARLENE STARLING STAKES (Grade 3) (For 3 year-old Fillies)

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Line Horse
White Pearl
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
10 / 11
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    Egyptian Mau         2    59.0    1    0.00     0.0   105   109          109   +4
2    White Pearl          4    59.0    2    0.40     4.5   105   105          105   +0
3    Let's Go Now         4    59.0    3    2.25     4.5   91    103          103   +12
4    Ivy League           2    59.0    4    2.50     0.0   98    111          111   +13
5    Platina Princess     2    59.0    5    3.75     0.0   97    110          110   +13
6    Tamil Tigress        2    59.0    6    5.50     0.0   90    109          109   +19
7    Sigrid Swing         4    59.0    7    10.75    4.5   80    100          100   +20
8    Storm Player         3    59.0    8    11.25    7.0   93    95           95    +2
9    Leaving Las Vegas    2    60.0    9    12.50    0.0   100   111          111   +11
10   Bomber Girl          4    59.0    10   13.00    4.5   98    100          100   +2
99   My Soul Mate         4    59.0    99   0.00     4.5   -     100          100   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Egyptian Mau 105 110 109 +1 0.0 -
2 White Pearl Line 105 114 105 +9 4.5
3 Let's Go Now 91 113 103 +10 4.5 -
4 Ivy League 98 98 111 -13 0.0 -
5 Platina Princess 97 94 110 -16 0.0 -
6 Tamil Tigress 90 77 109 -32 0.0 -
7 Sigrid Swing 80 70 100 -30 4.5 -
8 Storm Player 93 75 95 -20 7.0 -
9 Leaving Las Vegas 100 89 111 -22 0.0 -
10 Bomber Girl 98 84 100 -16 4.5 -
99 My Soul Mate - 107 100 +7 4.5 -
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