Official NHA Assessment

Race 4: TAB4RACING.CO.ZA MR 90 HANDICAP (Open)

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Line Horse
Life On Mars
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
1 / 13
Within 2 points
Significant Diffs
10 / 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    Kalahari Ferrari     3    57.5    1    0.00     2.0   87    89           87    +0
2    Jet Mirage           3    52.0    2    2.25     2.0   76    78           78    +2
3    Life On Mars         4    52.5    3    3.50     2.5   78    78           78    +0
4    Celtillus            5    59.0    4    4.75     0.0   88    96           96    +8
5    Line Of Power        4    53.0    5    4.85     2.5   76    79           79    +3
6    Paris Rix            3    57.5    6    7.10     2.0   87    89           89    +2
7    Jean's Man           5    61.0    7    7.20     0.0   92    100          100   +8
8    Undisclosed          5    52.5    8    7.30     0.0   74    83           83    +9
9    Slings And Arrows    3    56.5    9    7.55     2.0   85    87           87    +2
10   Cruzador             6    55.0    10   9.80     0.0   85    88           88    +3
11   Storm Chaser         4    55.0    11   10.05    2.5   79    83           83    +4
12   South East           4    56.5    12   10.30    2.5   83    86           86    +3
13   Amell                3    54.5    13   22.55    2.0   81    83           83    +2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kalahari Ferrari 87 87 87 ✓ Match 2.0 -
2 Jet Mirage 76 100 78 +22 2.0 -
3 Life On Mars Line 78 87 78 +9 2.5
4 Celtillus 88 92 96 -4 0.0 -
5 Line Of Power 76 73 79 -6 2.5 -
6 Paris Rix 87 81 89 -8 2.0 -
7 Jean's Man 92 92 100 -8 0.0 -
8 Undisclosed 74 62 83 -21 0.0 -
9 Slings And Arrows 85 92 87 +5 2.0 -
10 Cruzador 85 61 88 -27 0.0 -
11 Storm Chaser 79 69 83 -14 2.5 -
12 South East 83 55 86 -31 2.5 -
13 Amell 81 63 83 -20 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