Official NHA Assessment

Race 7: BETWAY MOTHER RUSSIA STAKES (Listed) (For 3-year-old Fillies)

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Line Horse
Pretty Persuasive
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
3 / 9
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    Warm Reception       3    58.0    1    0.00     4.0   98    83           83    -15
2    Valentina Balducci   2    60.0    2    1.50     0.0   94    98           98    +4
3    Pretty Persuasive    2    58.0    3    2.40     0.0   93    93           93    +0
4    Al Greenga           2    58.0    4    2.50     0.0   88    93           93    +5
5    Fire In Her Soul     2    58.0    5    4.00     0.0   88    92           92    +4
6    Tina Lovelace        2    58.0    6    4.80     0.0   101   91           91    -10
7    Princess Keira       2    58.0    7    6.10     0.0   87    91           91    +4
8    Mamlambo             2    58.0    8    10.30    0.0   91    91           91    +0
99   Amelia's Legacy      3    58.0    99   0.00     4.0   -     83           83    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Warm Reception 98 100 83 +17 4.0 -
2 Valentina Balducci 94 97 98 -1 0.0 -
3 Pretty Persuasive Line 93 102 93 +9 0.0
4 Al Greenga 88 91 93 -2 0.0 -
5 Fire In Her Soul 88 88 92 -4 0.0 -
6 Tina Lovelace 101 95 91 +4 0.0 -
7 Princess Keira 87 87 91 -4 0.0 -
8 Mamlambo 91 91 91 ✓ Match 0.0 -
99 Amelia's Legacy - 92 83 +9 4.0 -
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