Official NHA Assessment

Race 3: www.tabgold.co.za MAIDEN PLATE (3 year-old Fillies) (For Maiden 3 year-old Fillies)

Back to Race
Line Horse
Yellow Jacket
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
3 / 13
Within 2 points
Significant Diffs
8 / 13
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Princess Palace      3    60.0    1    0.00     8.5   -     63           6     +6
2    Her Royalty          3    60.0    2    1.20     8.5   72    67           67    -5
3    Yellow Jacket        2    57.5    3    2.30     0.0   77    77           77    +0
4    Oh Mandy             3    60.0    4    4.70     8.5   -     63           63    +63
5    Pull A Fast One      2    60.0    5    5.00     0.0   70    80           80    +10
6    Takatalvi            3    60.0    6    6.30     8.5   -     63           63    +63
7    Tuscan Star          3    60.0    7    6.50     8.5   -     63           63    +63
8    Call Me Harriet      2    60.0    8    8.30     0.0   -     80           80    +80
9    Guard My Fate        3    60.0    9    8.90     8.5   -     63           63    +63
10   Seattle Rain         3    60.0    10   11.80    8.5   -     63           63    +63
11   Rani Tarabai         3    60.0    11   12.90    8.5   -     63           63    +63
12   Mzansi Lace          2    60.0    12   13.95    0.0   -     80           80    +80
13   Sweet Words          2    60.0    13   17.05    0.0   -     80           80    +80
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Princess Palace - 68 6 +62 8.5 -
2 Her Royalty 72 68 67 +1 8.5 -
3 Yellow Jacket Line 77 74 77 -3 0.0
4 Oh Mandy - 64 63 +1 8.5 -
5 Pull A Fast One 70 75 80 -5 0.0 -
6 Takatalvi - 64 63 +1 8.5 -
7 Tuscan Star - 77 63 +14 8.5 -
8 Call Me Harriet - 63 80 -17 0.0 -
9 Guard My Fate - 48 63 -15 8.5 -
10 Seattle Rain - 55 63 -8 8.5 -
11 Rani Tarabai - 80 63 +17 8.5 -
12 Mzansi Lace - 45 80 -35 0.0 -
13 Sweet Words - 42 80 -38 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