Official NHA Assessment

Race 3: JOIN THE RACE COAST TURF CLUB OPEN MAIDEN (For all Maidens)

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Line Horse
Ocean Sky
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
6 / 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    Primal Instinct      3    57.5    1    0.00     8.0   -     60           6     +6
2    Super Viking         3    57.5    2    2.50     8.0   -     62           62    +62
3    Ocean Sky            3    61.5    3    2.70     8.0   70    70           70    +0
4    Greek Heiress        2    55.0    4    3.10     0.0   -     73           73    +73
5    Whatwillbewillbe     3    57.5    5    4.60     8.0   -     60           60    +60
6    Larking About        3    53.0    6    6.60     8.0   58    51           51    -7
7    Greenlight Jet       3    53.5    7    6.80     8.0   52    52           52    +0
8    That'll B The Day    2    59.5    8    8.80     0.0   81    80           80    -1
9    Blame It On Me       4    49.5    9    9.30     5.0   51    50           50    -1
10   Celestial Rocket     2    57.5    10   12.30    0.0   -     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 Primal Instinct - 78 6 +72 8.0 -
2 Super Viking - 77 62 +15 8.0 -
3 Ocean Sky Line 70 72 70 +2 8.0
4 Greek Heiress - 71 73 -2 0.0 -
5 Whatwillbewillbe - 71 60 +11 8.0 -
6 Larking About 58 55 51 +4 8.0 -
7 Greenlight Jet 52 44 52 -8 8.0 -
8 That'll B The Day 81 81 80 +1 0.0 -
9 Blame It On Me 51 65 50 +15 5.0 -
10 Celestial Rocket - 62 76 -14 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