Official NHA Assessment

Race 4: GALLOP FORM APPRENTICE CLASS 5 (Open. Benchmark at 60.0kg = 70)

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Line Horse
Professor Lupin
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
5 / 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  
------------------------------------------------------------------------------------------------------------------------
1    Sail To The Moon     4    57.5    1    0.00     3.5   65    69           69    +4
2    Grand Appeal         3    58.0    2    0.10     6.0   74    65           65    -9
3    Professor Lupin      4    50.0    3    1.00     3.5   58    58           58    +0
4    Now I Got You        5    56.0    4    1.70     0.0   70    76           76    +6
5    Sun Dazed            6    56.5    5    2.60     0.0   68    76           76    +8
6    Copacabana           4    59.5    6    3.40     3.5   72    74           74    +2
7    Beach Palace         4    55.5    7    3.50     3.5   69    66           66    -3
8    Iron Will            4    50.0    8    4.20     3.5   55    55           55    +0
9    Shiny Bob            4    54.0    9    4.90     3.5   66    62           62    -4
10   Lake Como            3    55.0    10   5.70     6.0   63    59           59    -4
11   Roy Taking Off       4    51.5    11   6.00     3.5   58    57           57    -1
12   Queen Of Pearls      2    56.0    12   10.20    0.0   82    73           73    -9
99   Slytherin            3    54.0    99   0.00     6.0   -     57           57    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Sail To The Moon 65 67 69 -2 3.5 -
2 Grand Appeal 74 77 65 +12 6.0 -
3 Professor Lupin Line 58 67 58 +9 3.5
4 Now I Got You 70 67 76 -9 0.0 -
5 Sun Dazed 68 64 76 -12 0.0 -
6 Copacabana 72 74 74 ✓ Match 3.5 -
7 Beach Palace 69 67 66 +1 3.5 -
8 Iron Will 55 63 55 +8 3.5 -
9 Shiny Bob 66 60 62 -2 3.5 -
10 Lake Como 63 61 59 +2 6.0 -
11 Roy Taking Off 58 54 57 -3 3.5 -
12 Queen Of Pearls 82 80 73 +7 0.0 -
99 Slytherin - 70 57 +13 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