Official NHA Assessment

Race 4: JAZZ SYNDICATE MAIDEN PLATE (For all Maidens)

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Line Horse
Ocean Sky
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
4 / 10
Within 2 points
Significant Diffs
2 / 10
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    Signor Dante         3    60.0    1    0.00     7.0   65    71           71    +6
2    In Motion            2    58.0    2    0.05     0.0   84    81           81    -3
3    Ocean Sky            3    60.0    3    0.25     7.0   71    71           71    +0
4    Chance Encounter     2    58.0    4    0.75     0.0   82    85           85    +3
5    Fort Liam            3    58.0    5    1.50     7.0   -     70           70    +70
6    Quiet Place          3    58.0    6    3.00     7.0   -     69           69    +69
7    Tunguska             3    60.0    7    8.25     7.0   73    71           71    -2
8    Takethegreenlight    3    58.0    8    9.00     7.0   -     67           67    +67
9    Frequent Traveller   3    58.0    9    11.75    7.0   73    67           67    -6
10   Luca Da Wheels       2    58.0    10   12.05    0.0   57    81           81    +24
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Signor Dante 65 74 71 +3 7.0 -
2 In Motion 84 82 81 +1 0.0 -
3 Ocean Sky Line 71 72 71 +1 7.0
4 Chance Encounter 82 80 85 -5 0.0 -
5 Fort Liam - 81 70 +11 7.0 -
6 Quiet Place - 73 69 +4 7.0 -
7 Tunguska 73 69 71 -2 7.0 -
8 Takethegreenlight - 69 67 +2 7.0 -
9 Frequent Traveller 73 72 67 +5 7.0 -
10 Luca Da Wheels 57 57 81 -24 0.0 -
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