Official NHA Assessment

Race 2: PLAY SOCCER 6, 10 AND 13 GRADUATION PLATE (Maidens,1 & 2 time winners)

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Line Horse
Jet Mirage
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
7 / 9
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    Jet Mirage           3    56.5    1    0.00     5.0   77    77           77    +0
2    Forest Spy           2    59.5    2    2.75     3.5   95    86           86    -9
3    Toureiro             5    60.0    3    5.75     0.0   57    94           94    +37
4    Russian Empire       5    60.0    4    8.00     0.0   75    94           94    +19
5    Zatara Magic         5    57.0    5    9.50     0.0   86    88           88    +2
6    Ivalo's Prince       5    60.0    6    9.75     0.0   71    94           94    +23
7    Isn't It Bliss       4    52.5    7    13.00    6.0   53    67           67    +14
8    Dog Detachment       4    56.0    8    15.25    6.0   60    74           74    +14
99   London Roads         3    58.5    99   0.00     5.0   -     81           81    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Jet Mirage Line 77 100 77 +23 5.0
2 Forest Spy 95 85 86 -1 3.5 -
3 Toureiro 57 66 94 -28 0.0 -
4 Russian Empire 75 53 94 -41 0.0 -
5 Zatara Magic 86 114 88 +26 0.0 -
6 Ivalo's Prince 71 62 94 -32 0.0 -
7 Isn't It Bliss 53 51 67 -16 6.0 -
8 Dog Detachment 60 60 74 -14 6.0 -
99 London Roads - 78 81 -3 5.0 -
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