Official NHA Assessment

Race 5: www.tabgold.co.za MAIDEN PLATE (For all Maidens)

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Line Horse
Lady Is A Champ
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
6 / 11
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    Billy Of Tea         2    56.0    1    0.00     0.0   78    67           67    -11
2    Lady Is A Champ      2    52.5    2    0.20     0.0   60    60           60    +0
3    Only A Poet          3    56.0    3    1.00     8.5   -     55           55    +55
4    Triton               3    56.0    4    2.30     8.5   59    54           54    -5
5    Player X             2    56.0    5    7.50     0.0   76    67           67    -9
6    Swift Nicks          3    60.0    6    8.60     8.5   68    58           58    -10
7    Rhumba Stiltskin     3    56.0    7    9.00     8.5   66    50           56    -10
8    The Green Gallant    6    60.0    8    13.80    0.0   64    75           75    +11
9    Thalaiva             2    56.0    9    20.50    0.0   59    67           67    +8
10   Imaginable           3    60.0    10   28.00    8.5   69    58           59    -10
11   Nikolai Kopernik     2    54.5    11   73.80    0.0   51    64           64    +13
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Billy Of Tea 78 75 67 +8 0.0 -
2 Lady Is A Champ Line 60 57 60 -3 0.0
3 Only A Poet - 59 55 +4 8.5 -
4 Triton 59 52 54 -2 8.5 -
5 Player X 76 65 67 -2 0.0 -
6 Swift Nicks 68 60 58 +2 8.5 -
7 Rhumba Stiltskin 66 63 56 +7 8.5 -
8 The Green Gallant 64 55 75 -20 0.0 -
9 Thalaiva 59 56 67 -11 0.0 -
10 Imaginable 69 92 59 +33 8.5 -
11 Nikolai Kopernik 51 45 64 -19 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