Official NHA Assessment

Race 3: TAB 4RACING APP MAIDEN PLATE (For Maidens. R15 000 Win bonus ROA Members)

Back to Race
Line Horse
Us Open
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
7 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    The Charioteer       2    57.0    1    0.00     0.0   -     78           6     +6
2    Launch Code          2    57.0    2    1.25     0.0   73    82           82    +9
3    Us Open              3    60.0    3    3.75     9.0   67    67           67    +0
4    Excalibur            2    57.0    4    5.00     0.0   70    78           78    +8
5    Bob Lee Swagger      4    57.0    5    5.50     7.0   -     64           64    +64
6    Regazzo Grande       2    57.0    6    5.60     0.0   74    78           78    +4
7    Follow The Band      2    57.0    7    9.10     0.0   68    78           78    +10
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 The Charioteer - 71 6 +65 0.0 -
2 Launch Code 73 70 82 -12 0.0 -
3 Us Open Line 67 60 67 -7 9.0
4 Excalibur 70 65 78 -13 0.0 -
5 Bob Lee Swagger - 53 64 -11 7.0 -
6 Regazzo Grande 74 72 78 -6 0.0 -
7 Follow The Band 68 53 78 -25 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