Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN JUVENILE PLATE (For 2 yo R100 000 Win BSA / CRS Bonus)

Back to Race
Line Horse
None identified
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
9 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Tenjiku              2    60.0    1    0.00     0.0   -     -            -     +0
2    Whispering Death     2    60.0    2    1.40     0.0   -     -            -     +0
3    Porridge Boy         2    60.0    3    3.10     0.0   -     -            -     +0
4    Sister Golden Hair   2    57.0    4    5.60     0.0   -     -            -     +0
5    Winchester           2    60.0    5    9.60     0.0   -     -            -     +0
6    Jazz Away            2    57.0    6    12.40    0.0   -     -            -     +0
7    Military Moves       2    60.0    7    12.65    0.0   -     -            -     +0
8    Erik's Girl          2    57.0    8    12.90    0.0   -     -            -     +0
9    A Good Heart         2    57.0    9    15.30    0.0   -     -            -     +0
99   Global Royalty       2    57.0    99   0.00     0.0   -     -            -     +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tenjiku - 96 - +96 0.0 -
2 Whispering Death - 99 - +99 0.0 -
3 Porridge Boy - 101 - +101 0.0 -
4 Sister Golden Hair - 81 - +81 0.0 -
5 Winchester - 69 - +69 0.0 -
6 Jazz Away - 64 - +64 0.0 -
7 Military Moves - 75 - +75 0.0 -
8 Erik's Girl - 67 - +67 0.0 -
9 A Good Heart - 84 - +84 0.0 -
99 Global Royalty - 48 - - 0.0 -
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