Official NHA Assessment

Race 6: TAB 4RACING APP MR 74 HANDICAP (Open)

Back to Race
Line Horse
Kotinos
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
3 / 11
Within 2 points
Significant Diffs
6 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    After Hours          7    55.0    1    0.00     0.0   64    68           64    +0
2    Great Notion         3    58.0    2    0.25     4.0   78    66           68    -10
3    Kotinos              3    58.0    3    1.25     4.0   70    70           70    +0
4    Legendary            2    59.0    4    1.45     0.0   80    79           79    -1
5    Fast Duty            3    57.0    5    2.45     4.0   68    66           66    -2
6    Rattle Bag           6    61.0    6    3.85     0.0   76    81           81    +5
7    Call Me Master       8    56.5    7    5.35     0.0   67    71           71    +4
8    Written In Stone     9    56.5    8    6.25     0.0   67    71           71    +4
9    Laughing William     5    61.0    9    6.75     0.0   76    80           80    +4
10   Sovereigns Call      4    59.0    10   7.25     2.0   72    72           72    +0
11   Sea Shanty           4    59.0    11   7.65     2.0   72    72           72    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 After Hours 64 79 64 +15 0.0 -
2 Great Notion 78 87 68 +19 4.0 -
3 Kotinos Line 70 59 70 -11 4.0
4 Legendary 80 69 79 -10 0.0 -
5 Fast Duty 68 67 66 +1 4.0 -
6 Rattle Bag 76 71 81 -10 0.0 -
7 Call Me Master 67 65 71 -6 0.0 -
8 Written In Stone 67 67 71 -4 0.0 -
9 Laughing William 76 75 80 -5 0.0 -
10 Sovereigns Call 72 70 72 -2 2.0 -
11 Sea Shanty 72 71 72 -1 2.0 -
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