Official NHA Assessment

Race 1: 4RACING WELCOMES YOU WORK RIDERS MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

Back to Race
Line Horse
Global Reef
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
7 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Japanese Maple       4    60.0    1    0.00     0.5   71    66           66    -5
2    Royal Albert         3    60.0    2    4.80     1.5   54    64           64    +10
3    Global Reef          3    60.0    3    5.00     1.5   64    64           64    +0
4    Rastignac            4    60.0    4    5.40     0.5   -     66           66    +66
5    Thomas Rainwater     2    60.0    5    6.40     0.0   55    67           67    +12
6    Clear The Path       4    60.0    6    10.60    0.5   -     66           66    +66
7    Damascodoro          3    60.0    7    11.75    1.5   59    64           64    +5
8    Mo Ment              4    60.0    8    12.75    0.5   64    66           66    +2
9    Lake Kivu            3    60.0    9    23.75    1.5   35    64           64    +29
10   Pomo Clapper         2    60.0    10   28.75    0.0   68    67           67    -1
11   Cavalry Charge       3    60.0    11   99.99    1.5   -     64           64    +64
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Japanese Maple 71 56 66 -10 0.5 -
2 Royal Albert 54 56 64 -8 1.5 -
3 Global Reef Line 64 68 64 +4 1.5
4 Rastignac - 58 66 -8 0.5 -
5 Thomas Rainwater 55 58 67 -9 0.0 -
6 Clear The Path - 65 66 -1 0.5 -
7 Damascodoro 59 59 64 -5 1.5 -
8 Mo Ment 64 93 66 +27 0.5 -
9 Lake Kivu 35 30 64 -34 1.5 -
10 Pomo Clapper 68 68 67 +1 0.0 -
11 Cavalry Charge - - 64 -64 1.5 -
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