Official NHA Assessment

Race 6: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MR 80 HANDICAP (Open)

Back to Race
Line Horse
Spring Tradition
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
0 / 10
Within 2 points
Significant Diffs
10 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Doitwithdiamonds     4    59.5    1    0.00     4.0   79    95           79    +0
2    Hammies Hero         2    55.5    2    0.60     0.0   71    100          100   +29
3    Ampersand            2    57.5    3    0.90     0.0   80    103          103   +23
4    Spring Tradition     3    56.5    4    1.20     7.0   87    87           87    +0
5    Nazare               3    55.5    5    1.40     7.0   71    84           84    +13
6    Hair Trigger         2    55.0    6    1.45     0.0   84    97           97    +13
7    Force De Dieu        3    56.5    7    1.95     7.0   73    86           86    +13
8    Super Awesome        4    59.0    8    2.00     4.0   78    97           97    +19
9    Thambi               5    55.0    9    2.80     0.0   70    96           96    +26
99   Potberrie            2    56.5    99   0.00     0.0   -     97           97    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Doitwithdiamonds 79 99 79 +20 4.0 -
2 Hammies Hero 71 69 100 -31 0.0 -
3 Ampersand 80 83 103 -20 0.0 -
4 Spring Tradition Line 87 81 87 -6 7.0
5 Nazare 71 70 84 -14 7.0 -
6 Hair Trigger 84 76 97 -21 0.0 -
7 Force De Dieu 73 64 86 -22 7.0 -
8 Super Awesome 78 79 97 -18 4.0 -
9 Thambi 70 55 96 -41 0.0 -
99 Potberrie - 105 97 +8 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