Official NHA Assessment

Race 1: 4RACING WELCOMES YOU WORK RIDERS MAIDEN HANDICAP (For Maidens with 3 or more runs)

Back to Race
Line Horse
Captain Jim
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
6 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Captain Efficient    2    60.5    1    0.00     7.0   69    75           69    +0
2    Pursuit Of Fame      2    52.0    2    0.20     7.0   60    58           58    -2
3    Captain Jim          3    55.5    3    1.00     10.5  58    58           58    +0
4    Brightest Blaze      3    52.0    4    5.75     10.5  50    51           51    +1
5    Gold De Grace        4    52.0    5    8.00     12.0  52    48           48    -4
6    Under The Rainbow    3    55.0    6    12.00    10.5  58    57           57    -1
7    Silver Seven         3    52.0    7    13.50    10.5  38    51           51    +13
99   King Of Numbers      4    60.0    99   0.00     12.0  -     64           64    +0
99   Rawalpindi           2    52.0    99   0.00     7.0   -     58           58    +0
99   Scarlet              3    55.0    99   0.00     10.5  -     57           57    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Captain Efficient 69 66 69 -3 7.0 -
2 Pursuit Of Fame 60 71 58 +13 7.0 -
3 Captain Jim Line 58 54 58 -4 10.5
4 Brightest Blaze 50 43 51 -8 10.5 -
5 Gold De Grace 52 51 48 +3 12.0 -
6 Under The Rainbow 58 64 57 +7 10.5 -
7 Silver Seven 38 38 51 -13 10.5 -
99 King Of Numbers - 75 64 +11 12.0 -
99 Rawalpindi - 62 58 +4 7.0 -
99 Scarlet - 47 57 -10 10.5 -
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