Official NHA Assessment

Race 6: WWW.TAB4RACING.COM MR 66 HANDICAP (Open)

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Line Horse
Corapi
Reference for assessment
Exact Matches
0 / 13
Calculated = Official
Close Matches
1 / 13
Within 2 points
Significant Diffs
9 / 13
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Parker Getrix        4    59.0    1    0.00     5.0   64    69           64    +0
2    Turn The Page        2    59.0    2    1.25     0.0   66    83           83    +17
3    Explosive Bond       4    56.5    3    1.50     5.0   77    67           67    -10
4    Corapi               3    53.5    4    1.75     9.0   53    53           53    +0
5    Skyfull              2    55.5    5    1.80     0.0   59    75           75    +16
6    Fifth Of July        5    60.5    6    3.25     0.0   67    84           84    +17
7    Leao Alado           2    60.5    7    5.50     0.0   85    82           82    -3
8    Masters Queen        3    59.0    8    6.00     9.0   64    61           61    -3
9    Summerland           5    55.0    9    7.00     0.0   58    71           71    +13
10   Coromandel           4    59.0    10   7.75     5.0   64    69           69    +5
11   Memorial Day         2    56.0    11   8.75     0.0   60    73           73    +13
12   Silly Fella          4    52.5    12   11.25    5.0   51    56           56    +5
13   Summer Lightning     3    52.0    13   18.50    9.0   47    47           47    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Parker Getrix 64 56 64 -8 5.0 -
2 Turn The Page 66 64 83 -19 0.0 -
3 Explosive Bond 77 94 67 +27 5.0 -
4 Corapi Line 53 67 53 +14 9.0
5 Skyfull 59 54 75 -21 0.0 -
6 Fifth Of July 67 63 84 -21 0.0 -
7 Leao Alado 85 77 82 -5 0.0 -
8 Masters Queen 64 56 61 -5 9.0 -
9 Summerland 58 45 71 -26 0.0 -
10 Coromandel 64 59 69 -10 5.0 -
11 Memorial Day 60 49 73 -24 0.0 -
12 Silly Fella 51 51 56 -5 5.0 -
13 Summer Lightning 47 46 47 -1 9.0 -
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