Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING FRIDAY 31 JANUARY CLASSIFIED STAKES (For horses with nett rating of 74 and below)

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Line Horse
Puerto Plata (ARG)
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
5 / 9
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    Harold The Duke      3    60.0    1    0.00     6.0   72    70           70    -2
2    Nothingelsematters   5    60.0    2    0.10     0.0   71    82           82    +11
3    Galaxy Moment        4    50.0    3    3.85     3.0   51    58           58    +7
4    Puerto Plata (ARG)   3    58.0    4    4.10     6.0   68    68           68    +0
5    Sundrop              6    50.0    5    9.35     0.0   50    62           62    +12
6    Be Real              2    56.5    6    9.60     0.0   73    75           75    +2
7    Karoo Gold           3    60.0    7    11.85    6.0   72    70           70    -2
8    Slainte Mhath        4    56.0    8    66.10    3.0   67    68           68    +1
9    Electric Storm       3    58.0    9    76.35    6.0   70    66           66    -4
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Harold The Duke 72 86 70 +16 6.0 -
2 Nothingelsematters 71 73 82 -9 0.0 -
3 Galaxy Moment 51 50 58 -8 3.0 -
4 Puerto Plata (ARG) Line 68 68 68 ✓ Match 6.0
5 Sundrop 50 48 62 -14 0.0 -
6 Be Real 73 71 75 -4 0.0 -
7 Karoo Gold 72 67 70 -3 6.0 -
8 Slainte Mhath 67 81 68 +13 3.0 -
9 Electric Storm 70 70 66 +4 6.0 -
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