Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING THURSDAY 3 FEBRUARY MAIDEN PLATE (For all Maidens)

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Line Horse
Master Of Coin
Reference for assessment
Exact Matches
2 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
8 / 12
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    Astrocyte            3    59.0    1    0.00     6.0   67    69           69    +2
2    Master Of Coin       3    59.0    2    2.25     6.0   72    72           72    +0
3    King Arthur          3    59.0    3    3.75     6.0   76    70           70    -6
4    Dj Junior            3    59.0    4    5.75     6.0   -     69           69    +69
5    My True North        4    60.0    5    6.00     3.0   61    77           77    +16
6    Arlington Action     6    59.0    6    8.25     0.0   73    81           81    +8
7    Just A Memory        3    59.0    7    9.00     6.0   71    69           69    -2
8    Gold Ambition        3    59.0    8    10.75    6.0   64    69           69    +5
9    Rishaan's Boy        3    59.0    9    11.75    6.0   61    69           69    +8
10   Lincoln County       3    59.0    10   14.75    6.0   -     69           69    +69
11   Sky Runner           3    59.0    11   17.25    6.0   55    69           69    +14
12   Movelikejackson      3    59.0    12   20.00    6.0   54    69           69    +15
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Astrocyte 67 69 69 ✓ Match 6.0 -
2 Master Of Coin Line 72 72 72 ✓ Match 6.0
3 King Arthur 76 68 70 -2 6.0 -
4 Dj Junior - 79 69 +10 6.0 -
5 My True North 61 61 77 -16 3.0 -
6 Arlington Action 73 73 81 -8 0.0 -
7 Just A Memory 71 67 69 -2 6.0 -
8 Gold Ambition 64 61 69 -8 6.0 -
9 Rishaan's Boy 61 42 69 -27 6.0 -
10 Lincoln County - 41 69 -28 6.0 -
11 Sky Runner 55 42 69 -27 6.0 -
12 Movelikejackson 54 45 69 -24 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