Official NHA Assessment

Race 6: TAB4RACING.CO.ZA PINNACLE STAKES (F & M) (For Fillies and Mares)

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Line Horse
Princess Kalisi
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
4 / 13
Within 2 points
Significant Diffs
6 / 13
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    Musical Glitch       4    61.0    1    0.00     0.5   97    93           93    -4
2    Pretty Betty         4    59.5    2    1.25     0.5   94    94           94    +0
3    Santa Therese        4    62.0    3    2.00     0.5   106   98           98    -8
4    Meercat              5    55.0    4    2.25     0.0   80    85           85    +5
5    Silver Tiara         5    53.5    5    2.30     0.0   75    81           81    +6
6    Princess Kalisi      5    59.5    6    2.80     0.0   93    93           93    +0
7    Rattle Mouse         5    56.5    7    4.05     0.0   83    86           86    +3
8    Calandra             5    58.0    8    4.30     0.0   90    88           88    -2
9    Bold Diva            5    58.0    9    5.05     0.0   87    88           88    +1
10   Querari Ferrari      5    56.5    10   6.05     0.0   84    85           85    +1
11   Sultanah             5    55.0    11   8.55     0.0   77    82           82    +5
12   River Cafe           4    52.0    12   12.30    0.5   75    75           75    +0
99   Step Lively          5    59.5    99   0.00     0.0   -     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 Musical Glitch 97 101 93 +8 0.5 -
2 Pretty Betty 94 94 94 ✓ Match 0.5 -
3 Santa Therese 106 103 98 +5 0.5 -
4 Meercat 80 79 85 -6 0.0 -
5 Silver Tiara 75 73 81 -8 0.0 -
6 Princess Kalisi Line 93 86 93 -7 0.0
7 Rattle Mouse 83 85 86 -1 0.0 -
8 Calandra 90 87 88 -1 0.0 -
9 Bold Diva 87 85 88 -3 0.0 -
10 Querari Ferrari 84 79 85 -6 0.0 -
11 Sultanah 77 59 82 -23 0.0 -
12 River Cafe 75 74 75 -1 0.5 -
99 Step Lively - 94 91 +3 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