Official NHA Assessment

Race 1: WSB.CO.ZA MAIDEN PLATE (For all Maidens)

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Line Horse
Turbulent
Reference for assessment
Exact Matches
1 / 16
Calculated = Official
Close Matches
1 / 16
Within 2 points
Significant Diffs
14 / 16
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    Bourne Supremacy     2    60.0    1    0.00     1.5   78    83           83    +5
2    Turbulent            3    60.0    2    1.50     2.5   81    81           81    +0
3    Truly Magical        2    57.5    3    3.25     1.5   65    78           78    +13
4    Delaroche            2    57.5    4    3.50     1.5   66    78           78    +12
5    Laudium              3    57.5    5    4.00     2.5   62    76           76    +14
6    Caughtubysurprise    3    57.5    6    4.05     2.5   52    76           76    +24
7    Timeline             3    57.5    7    4.15     2.5   50    76           76    +26
8    Norse Warrior        2    60.0    8    4.65     1.5   54    83           83    +29
9    Alesian Beau         3    60.0    9    4.90     2.5   66    81           81    +15
10   Looking Good         2    55.0    10   7.40     1.5   64    73           73    +9
11   Sun Eclipse          3    57.5    11   7.50     2.5   -     76           76    +76
12   Gutsy Baby           2    56.0    12   13.00    1.5   66    75           75    +9
99   Magnus The Good      2    60.0    99   0.00     1.5   -     83           83    +0
99   Nordic Spy           3    60.0    99   0.00     2.5   -     81           81    +0
99   Scented Path         3    60.0    99   0.00     2.5   -     81           81    +0
99   Shooting Arrow       3    57.5    99   0.00     2.5   -     76           76    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bourne Supremacy 78 78 83 -5 1.5 -
2 Turbulent Line 81 81 81 ✓ Match 2.5
3 Truly Magical 65 65 78 -13 1.5 -
4 Delaroche 66 63 78 -15 1.5 -
5 Laudium 62 61 76 -15 2.5 -
6 Caughtubysurprise 52 50 76 -26 2.5 -
7 Timeline 50 53 76 -23 2.5 -
8 Norse Warrior 54 54 83 -29 1.5 -
9 Alesian Beau 66 66 81 -15 2.5 -
10 Looking Good 64 62 73 -11 1.5 -
11 Sun Eclipse - - 76 -76 2.5 -
12 Gutsy Baby 66 64 75 -11 1.5 -
99 Magnus The Good - 74 83 -9 1.5 -
99 Nordic Spy - 56 81 -25 2.5 -
99 Scented Path - 52 81 -29 2.5 -
99 Shooting Arrow - 36 76 -40 2.5 -
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