Official NHA Assessment

Race 1: #THISISRACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (For all Maidens)

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Line Horse
Rishaan's Boy
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
1 / 11
Within 2 points
Significant Diffs
9 / 11
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    Just A Memory        3    60.0    1    0.00     4.0   69    61           61    -8
2    Pottinger            3    60.0    2    0.25     4.0   -     61           61    +61
3    Satoshi              3    60.0    3    6.00     4.0   -     61           61    +61
4    Royal Siege          5    60.0    4    6.50     0.0   48    69           69    +21
5    Rishaan's Boy        3    60.0    5    6.55     4.0   61    61           61    +0
6    Arlington Action     6    60.0    6    6.90     0.0   71    69           69    -2
7    Spring Will Come     3    60.0    7    7.50     4.0   66    61           61    -5
8    House Master         5    60.0    8    9.50     0.0   49    69           69    +20
9    Bulletin             3    60.0    9    12.25    4.0   59    61           61    +2
10   Movelikejackson      3    60.0    10   18.00    4.0   50    61           61    +11
99   Masuulka             3    60.0    99   0.00     4.0   -     61           61    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Just A Memory 69 67 61 +6 4.0 -
2 Pottinger - 70 61 +9 4.0 -
3 Satoshi - 60 61 -1 4.0 -
4 Royal Siege 48 44 69 -25 0.0 -
5 Rishaan's Boy Line 61 42 61 -19 4.0
6 Arlington Action 71 73 69 +4 0.0 -
7 Spring Will Come 66 72 61 +11 4.0 -
8 House Master 49 50 69 -19 0.0 -
9 Bulletin 59 50 61 -11 4.0 -
10 Movelikejackson 50 45 61 -16 4.0 -
99 Masuulka - 47 61 -14 4.0 -
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