Official NHA Assessment

Race 6: RACING TODAY MR 78 HANDICAP (Open)

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Line Horse
Eyjafjallajokull
Reference for assessment
Exact Matches
2 / 8
Calculated = Official
Close Matches
3 / 8
Within 2 points
Significant Diffs
4 / 8
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    Lt Alexander         2    57.0    1    0.00     0.0   73    68           73    +0
2    Eyjafjallajokull     2    60.0    2    0.75     0.0   78    78           78    +0
3    Silver Tycoon        7    58.0    3    1.25     0.0   74    74           74    +0
4    Guerra               4    58.0    4    2.25     5.0   75    63           65    -10
5    Empire Blue          4    61.0    5    3.50     5.0   81    67           71    -10
6    El Romiachi          8    59.0    6    4.00     0.0   76    73           73    -3
7    Graduation Time      4    57.5    7    4.75     5.0   73    59           63    -10
8    American Dream       3    56.5    8    8.00     8.0   71    51           61    -10
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Lt Alexander 73 72 73 -1 0.0 -
2 Eyjafjallajokull Line 78 86 78 +8 0.0
3 Silver Tycoon 74 74 74 ✓ Match 0.0 -
4 Guerra 75 86 65 +21 5.0 -
5 Empire Blue 81 71 71 ✓ Match 5.0 -
6 El Romiachi 76 77 73 +4 0.0 -
7 Graduation Time 73 70 63 +7 5.0 -
8 American Dream 71 81 61 +20 8.0 -
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