Official NHA Assessment

Race 3: www.tabgold.co.za OPEN MAIDEN (For all Maidens)

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Line Horse
Trend Maker
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
3 / 12
Within 2 points
Significant Diffs
6 / 12
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    Vila Vicosa          3    56.0    1    0.00     3.0   66    67           67    +1
2    Prince Florian       3    60.5    2    1.30     3.0   75    79           79    +4
3    Trend Maker          3    58.0    3    3.10     3.0   73    73           73    +0
4    Lava Burst           3    59.0    4    3.20     3.0   72    75           75    +3
5    Firelighter          3    59.0    5    4.50     3.0   72    73           73    +1
6    Run For Peace        3    48.0    6    5.20     3.0   63    51           53    -10
7    The Green Gallant    6    54.0    7    6.50     0.0   56    69           69    +13
8    Forest Drum          3    52.5    8    8.60     3.0   52    60           60    +8
9    Global Drumbeat      3    52.5    9    9.70     3.0   45    60           60    +15
10   Half Sovereign       3    48.5    10   9.90     3.0   59    52           52    -7
11   Futurarius           3    55.0    11   13.60    3.0   64    65           65    +1
12   Portfire             3    60.5    12   15.30    3.0   -     76           76    +76
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Vila Vicosa 66 74 67 +7 3.0 -
2 Prince Florian 75 73 79 -6 3.0 -
3 Trend Maker Line 73 73 73 ✓ Match 3.0
4 Lava Burst 72 72 75 -3 3.0 -
5 Firelighter 72 63 73 -10 3.0 -
6 Run For Peace 63 54 53 +1 3.0 -
7 The Green Gallant 56 55 69 -14 0.0 -
8 Forest Drum 52 48 60 -12 3.0 -
9 Global Drumbeat 45 65 60 +5 3.0 -
10 Half Sovereign 59 51 52 -1 3.0 -
11 Futurarius 64 60 65 -5 3.0 -
12 Portfire - 53 76 -23 3.0 -
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