Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING FRIDAY 10 MAY MR 74 HANDICAP (Open)

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Line Horse
Atkinson Grimshaw
Reference for assessment
Exact Matches
1 / 12
Calculated = Official
Close Matches
4 / 12
Within 2 points
Significant Diffs
3 / 12
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    Global Rush          2    59.5    1    0.00     0.0   77    70           77    +0
2    Guerra               4    59.5    2    1.00     0.5   77    73           73    -4
3    Atkinson Grimshaw    4    61.0    3    1.25     0.5   76    76           76    +0
4    Jaspero              4    59.0    4    1.50     0.5   80    71           71    -9
5    Empire Blue          4    61.0    5    2.25     0.5   80    75           75    -5
6    Indy View            2    61.5    6    2.35     0.0   77    76           76    -1
7    Maldano              3    53.0    7    3.60     2.0   64    54           54    -10
8    Hawk Circle          2    59.0    8    3.85     0.0   72    70           70    -2
9    Gunsmoke             3    58.0    9    5.60     2.0   70    63           63    -7
10   Sand Bank            2    59.5    10   5.70     0.0   73    70           70    -3
11   Downing Seven        5    60.0    11   5.95     0.0   77    71           71    -6
12   Path Of Choice       5    61.0    12   11.20    0.0   76    73           73    -3
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Global Rush 77 82 77 +5 0.0 -
2 Guerra 77 86 73 +13 0.5 -
3 Atkinson Grimshaw Line 76 75 76 -1 0.5
4 Jaspero 80 76 71 +5 0.5 -
5 Empire Blue 80 71 75 -4 0.5 -
6 Indy View 77 76 76 ✓ Match 0.0 -
7 Maldano 64 60 54 +6 2.0 -
8 Hawk Circle 72 68 70 -2 0.0 -
9 Gunsmoke 70 68 63 +5 2.0 -
10 Sand Bank 73 63 70 -7 0.0 -
11 Downing Seven 77 69 71 -2 0.0 -
12 Path Of Choice 76 68 73 -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