Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING THURSDAY 10 FEBRUARY FM 90 HANDICAP (F & M) (For Fillies and Mares)

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Line Horse
Princess Kesh
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 10
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    Pin Up               5    58.0    1    0.00     0.0   86    98           86    +0
2    Rosaprima            4    57.5    2    0.10     2.0   88    93           93    +5
3    Princess Kesh        3    52.5    3    0.75     4.0   83    83           83    +0
4    Let There Be Light   4    55.5    4    1.25     2.0   81    93           93    +12
5    Rouge Allure         8    61.5    5    2.75     0.0   93    107          107   +14
6    Phoenix              4    56.0    6    3.00     2.0   82    92           92    +10
7    Terra Time           3    54.5    7    3.30     4.0   86    84           84    -2
8    Dancing Arabian      4    53.0    8    5.50     2.0   76    84           84    +8
9    Lee Express          4    51.0    9    11.00    2.0   80    80           80    +0
10   Kay Tee Perry (ARG)  5    55.0    10   31.00    0.0   80    92           92    +12
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pin Up 86 92 86 +6 0.0 -
2 Rosaprima 88 75 93 -18 2.0 -
3 Princess Kesh Line 83 77 83 -6 4.0
4 Let There Be Light 81 59 93 -34 2.0 -
5 Rouge Allure 93 103 107 -4 0.0 -
6 Phoenix 82 78 92 -14 2.0 -
7 Terra Time 86 96 84 +12 4.0 -
8 Dancing Arabian 76 60 84 -24 2.0 -
9 Lee Express 80 79 80 -1 2.0 -
10 Kay Tee Perry (ARG) 80 80 92 -12 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