Official NHA Assessment

Race 6: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 GRADUATION PLATE (For 1 & 2 Time Winners & Maidens)

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Line Horse
Chasing Happiness
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
0 / 9
Within 2 points
Significant Diffs
9 / 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    Ready To Charge      2    59.0    1    0.00     2.5   108   100          100   -8
2    Mount Pilatus        4    56.5    2    0.25     4.0   96    92           92    -4
3    Elegant Ice          4    50.5    3    2.25     4.0   98    80           88    -10
4    Chasing Happiness    3    54.0    4    2.75     3.5   88    88           88    +0
5    Zinovi               2    59.5    5    4.00     2.5   102   101          101   -1
6    Princeofgreen        2    60.0    6    7.00     2.5   92    102          102   +10
7    Sunshine Day         4    57.0    7    8.50     4.0   90    93           93    +3
8    Blue Waters          2    54.5    8    9.25     2.5   61    91           91    +30
9    Copper Mist          2    56.5    9    9.75     2.5   85    95           95    +10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Ready To Charge 108 110 100 +10 2.5 -
2 Mount Pilatus 96 113 92 +21 4.0 -
3 Elegant Ice 98 108 88 +20 4.0 -
4 Chasing Happiness Line 88 110 88 +22 3.5
5 Zinovi 102 120 101 +19 2.5 -
6 Princeofgreen 92 87 102 -15 2.5 -
7 Sunshine Day 90 69 93 -24 4.0 -
8 Blue Waters 61 61 91 -30 2.5 -
9 Copper Mist 85 62 95 -33 2.5 -
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