Official NHA Assessment

Race 8: NEXT TURFFONTEIN RACEMEETING TUESDAY 16 DECEMBER MR 74 HANDICAP (Open)

Back to Race
Line Horse
Inafix
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
6 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Old Fashioned        3    58.0    1    0.00     6.0   70    72           70    +0
2    His Lordship         3    60.0    2    0.80     6.0   74    76           76    +2
3    Inafix               4    59.0    3    3.00     7.0   72    72           72    +0
4    Clairwood Rose       2    60.0    4    3.50     4.0   82    80           80    -2
5    Summer Shade         4    52.5    5    5.75     7.0   59    59           59    +0
6    Bumps Last Grind     2    57.5    6    6.50     4.0   77    75           75    -2
7    In The Ether         6    57.0    7    8.00     0.0   68    82           82    +14
8    Prophet              2    59.5    8    9.50     4.0   73    79           79    +6
9    Predatrice           3    58.0    9    10.90    6.0   70    72           72    +2
10   Nkandla Gold         4    57.5    10   11.50    7.0   69    69           69    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Old Fashioned 70 76 70 +6 6.0 -
2 His Lordship 74 85 76 +9 6.0 -
3 Inafix Line 72 69 72 -3 7.0
4 Clairwood Rose 82 77 80 -3 4.0 -
5 Summer Shade 59 52 59 -7 7.0 -
6 Bumps Last Grind 77 75 75 ✓ Match 4.0 -
7 In The Ether 68 63 82 -19 0.0 -
8 Prophet 73 66 79 -13 4.0 -
9 Predatrice 70 67 72 -5 6.0 -
10 Nkandla Gold 69 63 69 -6 7.0 -
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