Official NHA Assessment

Race 6: Call now! Or play online. www.trackandball.co.za FM 73 HANDICAP (F & M) (For Fillies and Mares)

Back to Race
Line Horse
Rotunda
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
5 / 9
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Chelsea Flower       6    57.5    1    0.00     0.0   73    73           73    +0
2    Wedding Bliss        4    54.0    2    1.80     1.0   59    69           69    +10
3    Rotunda              3    60.5    3    2.10     2.5   79    79           79    +0
4    Eye Catching         4    54.0    4    2.80     1.0   61    67           67    +6
5    Isla Morada          6    54.0    5    4.20     0.0   61    68           68    +7
6    Heartsease           3    61.5    6    4.25     2.5   81    78           78    -3
7    Hydrangea            3    52.5    7    6.25     2.5   63    58           58    -5
8    Angel Of Justice     3    60.0    8    7.65     2.5   78    73           73    -5
9    Siege Of Orleans     3    55.5    9    8.75     2.5   72    64           64    -8
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Chelsea Flower 73 77 73 +4 0.0 -
2 Wedding Bliss 59 56 69 -13 1.0 -
3 Rotunda Line 79 83 79 +4 2.5
4 Eye Catching 61 48 67 -19 1.0 -
5 Isla Morada 61 59 68 -9 0.0 -
6 Heartsease 81 73 78 -5 2.5 -
7 Hydrangea 63 59 58 +1 2.5 -
8 Angel Of Justice 78 57 73 -16 2.5 -
9 Siege Of Orleans 72 52 64 -12 2.5 -
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