Official NHA Assessment

Race 6: JOIN THE TRADITION www.capeturfclub.co.za CLASS 4 (F & M) (For Fillies & Mares. Benchmark at 60.0kg = 80)

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Line Horse
Pentolina
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
5 / 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    Lavender Bay         4    55.5    1    0.00     2.0   71    81           77    +6
2    Royal Invitation     5    62.0    2    0.30     0.0   84    103          103   +19
3    Pentolina            3    55.5    3    2.80     4.5   78    78           78    +0
4    Exquisite            3    56.5    4    3.20     4.5   82    80           80    -2
5    Tap Shoes            3    57.5    5    3.40     4.5   84    81           81    -3
6    Sansa Stark          4    54.0    6    3.70     2.0   68    79           79    +11
7    Summer Night City    5    52.0    7    4.95     0.0   60    78           78    +18
8    Crystal Maiden       4    57.0    8    13.45    2.0   74    84           84    +10
9    Jet To The Sun       4    59.0    9    32.45    2.0   78    88           88    +10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lavender Bay 71 95 77 +18 2.0 -
2 Royal Invitation 84 99 103 -4 0.0 -
3 Pentolina Line 78 80 78 +2 4.5
4 Exquisite 82 83 80 +3 4.5 -
5 Tap Shoes 84 86 81 +5 4.5 -
6 Sansa Stark 68 63 79 -16 2.0 -
7 Summer Night City 60 57 78 -21 0.0 -
8 Crystal Maiden 74 66 84 -18 2.0 -
9 Jet To The Sun 78 78 88 -10 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