Official NHA Assessment

Race 8: RACING240 APPRENTICE CLASSIFIED STAKES (For All Horses)

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Line Horse
Rhythm
Reference for assessment
Exact Matches
3 / 19
Calculated = Official
Close Matches
6 / 19
Within 2 points
Significant Diffs
9 / 19
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    Rhythm               2    56.5    1    0.00     2.0   67    67           67    +0
2    Teerex               4    53.5    2    1.75     3.5   66    58           58    -8
3    Green Planet         3    54.0    3    1.85     3.0   61    60           60    -1
4    Wordsworth           7    53.5    4    2.10     0.0   65    65           65    +0
5    Flight Engineer      3    50.5    5    2.85     3.0   58    53           53    -5
6    Cherry Oh Baby       4    60.0    6    3.60     3.5   78    71           71    -7
7    Away With Red        3    51.5    7    5.85     3.0   62    55           55    -7
8    Whatever Next        6    56.0    8    5.90     0.0   73    70           70    -3
9    Black Path           6    46.0    9    6.00     0.0   58    50           50    -8
10   My Ami Beach         6    52.0    10   6.50     0.0   70    62           62    -8
11   Captain Clever       2    53.5    11   8.25     2.0   63    61           61    -2
12   Panjandrum           2    58.0    12   8.50     2.0   77    70           70    -7
13   White Waters         2    55.5    13   10.75    2.0   73    65           65    -8
14   Strange Magic        5    53.5    14   11.50    0.0   69    65           65    -4
15   Originator           4    55.5    15   11.60    3.5   67    62           62    -5
16   Basingstoke          2    54.0    16   11.70    2.0   72    62           62    -10
17   Chief Runner         3    50.0    17   17.95    3.0   59    52           52    -7
18   Physiologus          2    49.0    18   18.00    2.0   53    52           52    -1
99   Surge Of Power       2    63.0    99   0.00     2.0   -     80           80    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Rhythm Line 67 67 67 ✓ Match 2.0
2 Teerex 66 66 58 +8 3.5 -
3 Green Planet 61 61 60 +1 3.0 -
4 Wordsworth 65 65 65 ✓ Match 0.0 -
5 Flight Engineer 58 58 53 +5 3.0 -
6 Cherry Oh Baby 78 78 71 +7 3.5 -
7 Away With Red 62 62 55 +7 3.0 -
8 Whatever Next 73 73 70 +3 0.0 -
9 Black Path 58 58 50 +8 0.0 -
10 My Ami Beach 70 70 62 +8 0.0 -
11 Captain Clever 63 63 61 +2 2.0 -
12 Panjandrum 77 77 70 +7 2.0 -
13 White Waters 73 73 65 +8 2.0 -
14 Strange Magic 69 69 65 +4 0.0 -
15 Originator 67 67 62 +5 3.5 -
16 Basingstoke 72 72 62 +10 2.0 -
17 Chief Runner 59 59 52 +7 3.0 -
18 Physiologus 53 50 52 -2 2.0 -
99 Surge Of Power - 80 80 ✓ Match 2.0 -
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