Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (For all Maidens)

Back to Race
Line Horse
Trip To Peace
Reference for assessment
Exact Matches
0 / 12
Calculated = Official
Close Matches
1 / 12
Within 2 points
Significant Diffs
8 / 12
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Frere Jacques        3    60.0    1    0.00     9.0   -     67           6     +6
2    Olympian Gold        2    57.0    2    4.40     0.0   -     79           79    +79
3    Trip To Peace        2    57.0    3    5.10     0.0   79    79           79    +0
4    Beach Walker         2    57.0    4    11.60    0.0   84    79           79    -5
5    Parabellum           3    60.0    5    13.70    9.0   63    67           67    +4
6    Copper Plate         3    56.0    6    14.70    9.0   54    59           59    +5
7    Rock My Boat         3    57.0    7    17.20    9.0   -     61           61    +61
8    King Of Silk         3    55.5    8    18.10    9.0   -     58           58    +58
9    Down Town Cody       2    57.0    9    22.30    0.0   -     79           79    +79
10   Lord Kelvin          3    60.0    10   31.50    9.0   -     67           67    +67
11   Talkoftheheights     2    57.0    11   31.90    0.0   65    79           79    +14
99   Afterburn            3    60.0    99   0.00     9.0   -     67           67    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Frere Jacques - 76 6 +70 9.0 -
2 Olympian Gold - 86 79 +7 0.0 -
3 Trip To Peace Line 79 77 79 -2 0.0
4 Beach Walker 84 75 79 -4 0.0 -
5 Parabellum 63 61 67 -6 9.0 -
6 Copper Plate 54 75 59 +16 9.0 -
7 Rock My Boat - 66 61 +5 9.0 -
8 King Of Silk - 68 58 +10 9.0 -
9 Down Town Cody - 70 79 -9 0.0 -
10 Lord Kelvin - 38 67 -29 9.0 -
11 Talkoftheheights 65 52 79 -27 0.0 -
99 Afterburn - 62 67 -5 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