Official NHA Assessment

Race 8: NEXT FAIRVIEW RACEMEETING MONDAY 3 JULY MR 78 HANDICAP (Open)

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Line Horse
Atkinson Grimshaw
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
2 / 12
Within 2 points
Significant Diffs
5 / 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    El Romiachi          8    57.5    1    0.00     0.0   73    72           73    +0
2    Humble Tune          4    53.5    2    2.75     0.5   65    65           65    +0
3    Atkinson Grimshaw    4    59.0    3    2.85     0.5   76    76           76    +0
4    Irish Rain           4    58.0    4    2.90     0.5   74    74           74    +0
5    Bournemouth          5    57.0    5    3.15     0.0   75    73           73    -2
6    Then In Focus        2    58.0    6    3.65     0.0   77    74           74    -3
7    Homer Fidget         4    53.0    7    5.40     0.5   63    62           62    -1
8    Ancestral Prayer     4    61.0    8    8.40     0.5   80    78           78    -2
9    Dammi                2    57.5    9    8.90     0.0   76    72           72    -4
10   Waiting For Summer   3    61.0    10   99.98    1.5   80    76           76    -4
99   Que Shiraz           3    57.0    99   0.00     1.5   -     68           68    +0
99   Dawn Of A New Era    4    58.0    99   0.00     0.5   -     72           72    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 El Romiachi 73 77 73 +4 0.0 -
2 Humble Tune 65 58 65 -7 0.5 -
3 Atkinson Grimshaw Line 76 75 76 -1 0.5
4 Irish Rain 74 71 74 -3 0.5 -
5 Bournemouth 75 110 73 +37 0.0 -
6 Then In Focus 77 71 74 -3 0.0 -
7 Homer Fidget 63 55 62 -7 0.5 -
8 Ancestral Prayer 80 79 78 +1 0.5 -
9 Dammi 76 55 72 -17 0.0 -
10 Waiting For Summer 80 79 76 +3 1.5 -
99 Que Shiraz - 72 68 +4 1.5 -
99 Dawn Of A New Era - 78 72 +6 0.5 -
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