Official NHA Assessment

Race 7: 4RACING WISHES YOU A BLESSED FESTIVE SEASON GRADUATION PLATE (For 1 & 2 Time Winners & Maidens)

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Line Horse
Blue Waters
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
8 / 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    Gimme A Shot         2    57.5    1    0.00     4.0   112   89           89    -23
2    Argo Alley           2    59.5    2    3.00     4.0   100   93           93    -7
3    Picture Perfect      3    60.0    3    5.25     6.0   80    90           90    +10
4    Blue Waters          2    54.5    4    5.75     4.0   83    83           83    +0
5    Ipso Facto           2    54.5    5    7.75     4.0   90    83           83    -7
6    Westwing Belter      7    54.5    6    17.75    0.0   57    91           91    +34
99   Tara Iti             4    55.5    99   0.00     7.0   -     79           79    +0
99   Karangetang          2    60.0    99   0.00     4.0   -     94           94    +0
99   Southern Skies       3    50.5    99   0.00     6.0   -     71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Gimme A Shot 112 110 89 +21 4.0 -
2 Argo Alley 100 110 93 +17 4.0 -
3 Picture Perfect 80 80 90 -10 6.0 -
4 Blue Waters Line 83 61 83 -22 4.0
5 Ipso Facto 90 92 83 +9 4.0 -
6 Westwing Belter 57 54 91 -37 0.0 -
99 Tara Iti - 52 79 -27 7.0 -
99 Karangetang - 95 94 +1 4.0 -
99 Southern Skies - 97 71 +26 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