Official NHA Assessment

Race 6: KLAWERVLEI STUD CLASSIFIED STAKES (For horses with nett rating of 78 and below)

Back to Race
Line Horse
Path Of Choice
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
2 / 7
Within 2 points
Significant Diffs
3 / 7
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Silent War           3    60.0    1    0.00     1.0   79    71           71    -8
2    Path Of Choice       5    60.0    2    0.50     0.0   78    78           78    +0
3    Tothemoonandback     5    56.0    3    1.25     0.0   90    69           80    -10
4    Captive Moon         6    58.0    4    4.25     0.0   76    70           70    -6
5    Fly To Rio           4    51.0    5    4.55     0.5   56    54           54    -2
6    Sky God              3    54.0    6    5.05     1.0   67    59           59    -8
7    Aus Bob              3    60.0    7    7.80     1.0   81    71           71    -10
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Silent War 79 91 71 +20 1.0 -
2 Path Of Choice Line 78 68 78 -10 0.0
3 Tothemoonandback 90 69 80 -11 0.0 -
4 Captive Moon 76 75 70 +5 0.0 -
5 Fly To Rio 56 54 54 ✓ Match 0.5 -
6 Sky God 67 62 59 +3 1.0 -
7 Aus Bob 81 70 71 -1 1.0 -
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