Official NHA Assessment

Race 6: #YOUCANBETONUS! CLASSIFIED STAKES (For All Horses)

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Line Horse
Donny's Boy
Reference for assessment
Exact Matches
2 / 13
Calculated = Official
Close Matches
6 / 13
Within 2 points
Significant Diffs
3 / 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    Kleinzee             3    58.0    1    0.00     3.0   73    68           68    -5
2    Hospices De Beaune   3    58.5    2    0.25     3.0   68    69           69    +1
3    Haze And Smoke       2    60.5    3    3.50     0.0   85    80           80    -5
4    Donny's Boy          3    58.0    4    4.75     3.0   68    68           68    +0
5    Supreme Judge        2    60.0    5    5.00     0.0   78    78           78    +0
6    Bomber Bay           2    50.0    6    5.50     0.0   60    58           58    -2
7    Princess Of Bayeux   2    59.0    7    7.75     0.0   76    76           76    +0
8    Downing Seven        5    60.0    8    8.50     0.0   71    78           78    +7
9    Das Gute             4    59.5    9    8.75     1.5   78    74           74    -4
10   San Quintin          6    52.0    10   9.00     0.0   58    62           62    +4
11   O Space O            2    54.0    11   9.10     0.0   59    66           66    +7
12   King Viserys         4    57.5    12   9.35     1.5   73    70           70    -3
13   Sovereigns Call      4    57.5    13   11.85    1.5   72    70           70    -2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Kleinzee 73 77 68 +9 3.0 -
2 Hospices De Beaune 68 68 69 -1 3.0 -
3 Haze And Smoke 85 85 80 +5 0.0 -
4 Donny's Boy Line 68 68 68 ✓ Match 3.0
5 Supreme Judge 78 77 78 -1 0.0 -
6 Bomber Bay 60 60 58 +2 0.0 -
7 Princess Of Bayeux 76 75 76 -1 0.0 -
8 Downing Seven 71 69 78 -9 0.0 -
9 Das Gute 78 77 74 +3 1.5 -
10 San Quintin 58 58 62 -4 0.0 -
11 O Space O 59 59 66 -7 0.0 -
12 King Viserys 73 73 70 +3 1.5 -
13 Sovereigns Call 72 70 70 ✓ Match 1.5 -
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