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
Main Defender
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
0 / 14
Within 2 points
Significant Diffs
14 / 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    Sandringham Summit   2    60.0    1    0.00     0.0   110   112          112   +2
2    Main Defender        4    60.0    2    2.40     0.5   113   113          113   +0
3    We Are The Logans    2    60.0    3    4.30     0.0   87    112          112   +25
4    Francine             4    57.5    4    5.40     0.5   88    106          106   +18
5    Kyomai               4    60.0    5    5.60     0.5   92    111          111   +19
6    Pure Predator        2    60.0    6    6.10     0.0   103   112          112   +9
7    Down By The River    2    60.0    7    6.20     0.0   93    112          112   +19
8    Just Var             4    60.0    8    8.20     0.5   86    111          111   +25
9    Hotarubi             4    60.0    9    10.20    0.5   92    111          111   +19
10   Romance In Rome      2    60.0    10   12.10    0.0   97    112          112   +15
11   The Africa House     4    60.0    11   15.10    0.5   96    111          111   +15
12   Longsword            2    60.0    12   15.80    0.0   88    112          112   +24
13   Lucky Lad            4    60.0    13   16.40    0.5   117   111          111   -6
99   Ermelo               2    60.0    99   0.00     0.0   -     112          112   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sandringham Summit 110 123 112 +11 0.0 -
2 Main Defender Line 113 130 113 +17 0.5
3 We Are The Logans 87 73 112 -39 0.0 -
4 Francine 88 99 106 -7 0.5 -
5 Kyomai 92 70 111 -41 0.5 -
6 Pure Predator 103 118 112 +6 0.0 -
7 Down By The River 93 95 112 -17 0.0 -
8 Just Var 86 83 111 -28 0.5 -
9 Hotarubi 92 98 111 -13 0.5 -
10 Romance In Rome 97 83 112 -29 0.0 -
11 The Africa House 96 93 111 -18 0.5 -
12 Longsword 88 72 112 -40 0.0 -
13 Lucky Lad 117 118 111 +7 0.5 -
99 Ermelo - 91 112 -21 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