Official NHA Assessment

Race 4: GALLOP TV MAIDEN PLATE (For all Maidens)

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Line Horse
Meerkat Moon
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
4 / 13
Within 2 points
Significant Diffs
7 / 13
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    Go Grayson Go        3    58.0    1    0.00     7.0   83    65           65    -18
2    Meerkat Moon         2    58.0    2    5.70     0.0   79    79           79    +0
3    Green Mile           4    60.0    3    6.80     4.0   75    75           75    +0
4    King Celtillus       3    58.0    4    8.60     7.0   -     65           65    +65
5    Uncle Lucky          2    58.5    5    10.10    0.0   64    80           80    +16
6    Carnival Park        3    58.0    6    13.40    7.0   76    65           66    -10
7    Long Gallery         3    60.0    7    14.20    7.0   70    69           69    -1
8    New Frontier         2    55.5    8    16.70    0.0   77    74           74    -3
9    Mont Tremblant       3    58.0    9    20.00    7.0   -     65           65    +65
10   Fern Hill            3    58.0    10   20.40    7.0   -     65           65    +65
11   Snake Alley          3    60.0    11   21.30    7.0   46    69           69    +23
99   Master Du Rouvray    2    58.0    99   0.00     0.0   -     79           79    +0
99   World Of Our Own     3    58.0    99   0.00     7.0   -     65           65    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Go Grayson Go 83 95 65 +30 7.0 -
2 Meerkat Moon Line 79 70 79 -9 0.0
3 Green Mile 75 66 75 -9 4.0 -
4 King Celtillus - 70 65 +5 7.0 -
5 Uncle Lucky 64 61 80 -19 0.0 -
6 Carnival Park 76 66 66 ✓ Match 7.0 -
7 Long Gallery 70 70 69 +1 7.0 -
8 New Frontier 77 77 74 +3 0.0 -
9 Mont Tremblant - 56 65 -9 7.0 -
10 Fern Hill - 63 65 -2 7.0 -
11 Snake Alley 46 48 69 -21 7.0 -
99 Master Du Rouvray - 81 79 +2 0.0 -
99 World Of Our Own - 87 65 +22 7.0 -
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