Official NHA Assessment

Race 5: ONE WORLD RACING SYNDICATE MAIDEN PLATE (For all Maidens)

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Line Horse
Greenchoice
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
7 / 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    Smarten Up           3    58.0    1    0.00     7.0   -     66           6     +6
2    Greenchoice          2    58.0    2    1.75     0.0   83    83           83    +0
3    Ocean Sky            3    60.0    3    2.75     7.0   70    72           72    +2
4    Fort Liam            3    58.0    4    3.50     7.0   -     67           67    +67
5    Lucky Luke           3    58.0    5    3.90     7.0   -     67           67    +67
6    Blue Steel           2    58.0    6    4.90     0.0   75    80           80    +5
7    Frequent Traveller   3    58.0    7    6.15     7.0   -     66           66    +66
8    Gale Warning         2    58.0    8    7.15     0.0   80    80           80    +0
9    No Pressure          3    58.0    9    11.65    7.0   -     66           66    +66
10   Key Board            3    58.0    10   13.40    7.0   -     66           66    +66
11   Ruby's Fortress      3    54.0    11   27.40    7.0   -     58           58    +58
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Smarten Up - 88 6 +82 7.0 -
2 Greenchoice Line 83 80 83 -3 0.0
3 Ocean Sky 70 72 72 ✓ Match 7.0 -
4 Fort Liam - 81 67 +14 7.0 -
5 Lucky Luke - - 67 -67 7.0 -
6 Blue Steel 75 82 80 +2 0.0 -
7 Frequent Traveller - 72 66 +6 7.0 -
8 Gale Warning 80 79 80 -1 0.0 -
9 No Pressure - 75 66 +9 7.0 -
10 Key Board - 53 66 -13 7.0 -
11 Ruby's Fortress - 36 58 -22 7.0 -
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