Official NHA Assessment

Race 8: NEXT VAAL RACEMEETING TUESDAY 20 AUGUST MR 66 HANDICAP (Open)

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Line Horse
Commander Of All
Reference for assessment
Exact Matches
2 / 13
Calculated = Official
Close Matches
2 / 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    Written In Stone     9    54.0    1    0.00     0.0   54    68           54    +0
2    Jet Cat              9    57.0    2    2.25     0.0   60    74           74    +14
3    Commander Of All     2    61.5    3    2.50     7.0   69    69           69    +0
4    Southern Style       5    58.0    4    3.60     0.0   62    76           76    +14
5    After Hours          7    57.0    5    3.75     0.0   65    74           74    +9
6    Samoa                10   56.5    6    4.45     0.0   59    73           73    +14
7    Prized Platinum      3    60.5    7    4.50     10.5  67    60           60    -7
8    Dark Tide            5    54.0    8    5.00     0.0   54    68           68    +14
9    Vava Vegas           5    55.0    9    6.50     0.0   61    70           70    +9
10   Prince Of Denmark    4    57.5    10   7.50     12.0  61    51           51    -10
11   Miraculous Man       3    48.0    11   16.75    10.5  50    35           40    -10
12   Sail The Sky         4    59.5    12   17.00    12.0  65    55           55    -10
99   Mescal               2    59.0    99   0.00     7.0   -     64           64    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Written In Stone 54 67 54 +13 0.0 -
2 Jet Cat 60 60 74 -14 0.0 -
3 Commander Of All Line 69 56 69 -13 7.0
4 Southern Style 62 54 76 -22 0.0 -
5 After Hours 65 79 74 +5 0.0 -
6 Samoa 59 64 73 -9 0.0 -
7 Prized Platinum 67 72 60 +12 10.5 -
8 Dark Tide 54 53 68 -15 0.0 -
9 Vava Vegas 61 58 70 -12 0.0 -
10 Prince Of Denmark 61 51 51 ✓ Match 12.0 -
11 Miraculous Man 50 45 40 +5 10.5 -
12 Sail The Sky 65 62 55 +7 12.0 -
99 Mescal - 64 64 ✓ Match 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