Official NHA Assessment

Race 5: WORLD POOL MOMENT OF THE DAY PREMIERS CHAMPION STAKES (Grade 1) (For 2 year olds)

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Line Horse
Chronicle King
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
1 / 14
Within 2 points
Significant Diffs
11 / 14
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    Jan Van Goyen        2    60.0    1    0.00     0.0   97    112          103   +6
2    Tin Pan Alley        2    60.0    2    3.70     0.0   109   113          113   +4
3    Chronicle King       2    60.0    3    4.70     0.0   112   112          112   +0
4    King Harald          2    60.0    4    4.90     0.0   100   112          112   +12
5    Count Of Rouen       2    60.0    5    5.00     0.0   104   112          112   +8
6    Porridge Boy         2    60.0    6    5.10     0.0   101   112          112   +11
7    Malmesbury Missile   2    60.0    7    6.80     0.0   110   112          112   +2
8    Bruh                 2    60.0    8    6.90     0.0   84    112          112   +28
9    Blizzard Quest       2    60.0    9    7.15     0.0   87    112          112   +25
10   Soldier Boy          2    60.0    10   7.35     0.0   107   112          112   +5
11   Charming Cheetah     2    60.0    11   8.85     0.0   107   112          112   +5
12   World Of Royalty     2    60.0    12   9.90     0.0   85    112          112   +27
13   Blackjack Randall    2    60.0    13   10.40    0.0   84    112          112   +28
14   Ziyan's Pride        2    60.0    14   23.30    0.0   85    112          112   +27
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jan Van Goyen 97 118 103 +15 0.0 -
2 Tin Pan Alley 109 128 113 +15 0.0 -
3 Chronicle King Line 112 115 112 +3 0.0
4 King Harald 100 102 112 -10 0.0 -
5 Count Of Rouen 104 96 112 -16 0.0 -
6 Porridge Boy 101 101 112 -11 0.0 -
7 Malmesbury Missile 110 110 112 -2 0.0 -
8 Bruh 84 92 112 -20 0.0 -
9 Blizzard Quest 87 92 112 -20 0.0 -
10 Soldier Boy 107 107 112 -5 0.0 -
11 Charming Cheetah 107 106 112 -6 0.0 -
12 World Of Royalty 85 86 112 -26 0.0 -
13 Blackjack Randall 84 84 112 -28 0.0 -
14 Ziyan's Pride 85 65 112 -47 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