Official NHA Assessment

Race 8: NEXT TURFFONTEIN RACEMEETING SATURDAY 29 APRIL CLASSIFIED STAKES (For horses with nett rating of 75 and below)

Line Horse
Napoleon
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
4 / 11
Within 2 points
Significant Diffs
5 / 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    Vesuvio              5    58.0    1    0.00     0.0   72    69           69    -3
2    Kwazzi's Lady        4    58.0    2    0.50     1.0   69    72           72    +3
3    Over Two You         3    60.0    3    1.50     2.5   70    71           71    +1
4    Napoleon             3    60.0    4    2.75     2.5   70    70           70    +0
5    Tinder Dry           3    58.0    5    4.50     2.5   70    64           64    -6
6    Arden Park           3    54.0    6    7.90     2.5   61    56           56    -5
7    Lidl Miss Sunshine   3    52.5    7    8.40     2.5   55    53           53    -2
8    Libeccio             5    60.0    8    9.40     0.0   74    73           73    -1
9    Fish Eagle           5    60.0    9    13.65    0.0   74    73           73    -1
10   Da Capo              3    54.0    10   29.65    2.5   59    56           56    -3
11   Mcebisi              4    60.0    11   99.99    1.0   70    71           71    +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Vesuvio 72 85 69 +16 0.0 -
2 Kwazzi's Lady 69 82 72 +10 1.0 -
3 Over Two You 70 74 71 +3 2.5 -
4 Napoleon Line 70 72 70 +2 2.5
5 Tinder Dry 70 66 64 +2 2.5 -
6 Arden Park 61 53 56 -3 2.5 -
7 Lidl Miss Sunshine 55 62 53 +9 2.5 -
8 Libeccio 74 62 73 -11 0.0 -
9 Fish Eagle 74 71 73 -2 0.0 -
10 Da Capo 59 50 56 -6 2.5 -
11 Mcebisi 70 70 71 -1 1.0 -
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