Official NHA Assessment

Race 6: MEMORIAL MILE (Listed) (For all horses at Weight for age + Penalties)

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Line Horse
Grazinginthegrass
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
1 / 13
Within 2 points
Significant Diffs
12 / 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    Grazinginthegrass    4    60.0    1    0.00     7.0   111   111          111   +0
2    Bush Tracker         6    59.0    2    0.25     0.0   104   123          123   +19
3    Khaya's Hope         5    59.5    3    2.00     0.0   107   127          127   +20
4    Castletown           3    59.0    4    4.25     9.0   103   106          106   +3
5    Bold Resolve         4    59.0    5    4.30     7.0   93    109          109   +16
6    Safari Blue          3    59.0    6    5.55     9.0   101   105          105   +4
7    Peace In Our World   6    59.0    7    5.60     0.0   92    123          123   +31
8    Blonde Act           3    59.5    8    6.60     9.0   96    106          106   +10
9    Tarantino            4    59.0    9    7.85     7.0   99    109          109   +10
10   Prophet              2    58.5    10   11.10    0.0   102   122          122   +20
11   Adios Amigos         4    59.0    11   24.35    7.0   89    109          109   +20
99   Find Me Unafraid     4    59.0    99   0.00     7.0   -     109          109   +0
99   Somerset Maugham     4    60.0    99   0.00     7.0   -     111          111   +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Grazinginthegrass Line 111 111 111 ✓ Match 7.0
2 Bush Tracker 104 100 123 -23 0.0 -
3 Khaya's Hope 107 114 127 -13 0.0 -
4 Castletown 103 90 106 -16 9.0 -
5 Bold Resolve 93 91 109 -18 7.0 -
6 Safari Blue 101 91 105 -14 9.0 -
7 Peace In Our World 92 89 123 -34 0.0 -
8 Blonde Act 96 96 106 -10 9.0 -
9 Tarantino 99 96 109 -13 7.0 -
10 Prophet 102 66 122 -56 0.0 -
11 Adios Amigos 89 55 109 -54 7.0 -
99 Find Me Unafraid - 85 109 -24 7.0 -
99 Somerset Maugham - 97 111 -14 7.0 -
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