Official NHA Assessment

Race 7: RACEHORSE OWNERS ASSOCIATION MR 96 HANDICAP (Open)

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Line Horse
Irish Tractor
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
0 / 11
Within 2 points
Significant Diffs
9 / 11
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    Irish Tractor        4    59.5    1    0.00     0.5   95    95           95    +0
2    Theory Of Flight     4    58.0    2    0.40     0.5   92    97           97    +5
3    All Of Me            6    56.5    3    4.00     0.0   89    91           91    +2
4    Paton's Tears        4    57.0    4    6.10     0.5   90    90           90    +0
5    Kayla's Champ        5    60.5    5    6.80     0.0   97    98           98    +1
6    Foreign Field        4    55.0    6    8.00     0.5   86    86           86    +0
7    Nordic Rebel         8    56.5    7    8.40     0.0   89    90           90    +1
8    My Master            3    52.0    8    9.00     1.5   83    78           78    -5
9    Mardi Gras           7    61.5    9    10.00    0.0   102   100          100   -2
10   Eagle Alley          4    53.5    10   11.20    0.5   83    83           83    +0
11   Now You See Me       6    56.0    11   12.00    0.0   88    89           89    +1
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Irish Tractor Line 95 102 95 +7 0.5
2 Theory Of Flight 92 91 97 -6 0.5 -
3 All Of Me 89 94 91 +3 0.0 -
4 Paton's Tears 90 78 90 -12 0.5 -
5 Kayla's Champ 97 77 98 -21 0.0 -
6 Foreign Field 86 73 86 -13 0.5 -
7 Nordic Rebel 89 81 90 -9 0.0 -
8 My Master 83 57 78 -21 1.5 -
9 Mardi Gras 102 83 100 -17 0.0 -
10 Eagle Alley 83 58 83 -25 0.5 -
11 Now You See Me 88 84 89 -5 0.0 -
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