Official NHA Assessment

Race 8: 4RACING THANKS & APPRECIATES CK HORSE RACING MIDDLE STAKES (For horses with nett rating of 101 and below)

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Line Horse
Calibre Crest
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
9 / 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    Meridius             2    62.0    1    0.00     0.0   101   102          102   +1
2    Calibre Crest        3    52.0    2    2.30     1.5   81    81           81    +0
3    Climate Control      2    52.0    3    3.30     0.0   83    83           83    +0
4    Queen Of Shadows     3    56.0    4    4.20     1.5   93    88           88    -5
5    African Torrent      2    54.5    5    4.50     0.0   85    87           87    +2
6    Bey Suyay            4    51.5    6    6.50     0.5   85    80           80    -5
7    Greek Miss           3    56.0    7    6.70     1.5   91    87           87    -4
8    Kaptein              4    56.0    8    6.90     0.5   88    89           89    +1
9    Baby Shooz           5    52.0    9    8.70     0.0   78    82           82    +4
10   Barneys Pride        3    56.0    10   9.10     1.5   89    87           87    -2
11   Cirillo              6    60.5    11   11.35    0.0   100   99           99    -1
99   Perfect Witness      3    58.0    99   0.00     1.5   -     91           91    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Meridius 101 115 102 +13 0.0 -
2 Calibre Crest Line 81 74 81 -7 1.5
3 Climate Control 83 65 83 -18 0.0 -
4 Queen Of Shadows 93 95 88 +7 1.5 -
5 African Torrent 85 68 87 -19 0.0 -
6 Bey Suyay 85 84 80 +4 0.5 -
7 Greek Miss 91 91 87 +4 1.5 -
8 Kaptein 88 80 89 -9 0.5 -
9 Baby Shooz 78 73 82 -9 0.0 -
10 Barneys Pride 89 76 87 -11 1.5 -
11 Cirillo 100 98 99 -1 0.0 -
99 Perfect Witness - 105 91 +14 1.5 -
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