Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING FRIDAY 8 DECEMBER CLASSIFIED STAKES (For horses with nett rating of 71 and below)

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Line Horse
Ubisika
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
3 / 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    We All Chomies       5    52.0    1    0.00     0.0   46    64           52    +6
2    Ubisika              2    58.0    2    0.10     0.0   76    76           76    +0
3    Fiery Duke           3    58.0    3    0.35     5.0   65    71           71    +6
4    Path Of Choice       5    58.0    4    0.45     0.0   65    81           81    +16
5    Wind Sock            3    56.0    5    1.70     5.0   70    65           65    -5
6    Arturo               2    54.0    6    1.95     0.0   69    71           71    +2
7    Xplicit Content      4    56.0    7    3.20     3.0   70    68           68    -2
8    Clap Of Thunder      3    60.0    8    3.95     5.0   68    71           71    +3
9    Manchester Fighter   2    54.0    9    11.20    0.0   69    68           68    -1
10   Gimme A Diamond      2    52.0    10   12.95    0.0   61    64           64    +3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 We All Chomies 46 54 52 +2 0.0 -
2 Ubisika Line 76 80 76 +4 0.0
3 Fiery Duke 65 72 71 +1 5.0 -
4 Path Of Choice 65 68 81 -13 0.0 -
5 Wind Sock 70 68 65 +3 5.0 -
6 Arturo 69 76 71 +5 0.0 -
7 Xplicit Content 70 58 68 -10 3.0 -
8 Clap Of Thunder 68 66 71 -5 5.0 -
9 Manchester Fighter 69 66 68 -2 0.0 -
10 Gimme A Diamond 61 54 64 -10 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