Official NHA Assessment

Race 8: NEXT TURFFONTEIN RACEMEETING SUNDAY 25 FEBRUARY CLASSIFIED STAKES (For horses with nett rating of 75 and below)

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Line Horse
Fast Duty
Reference for assessment
Exact Matches
0 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
6 / 11
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Nordic Rebel         8    60.0    1    0.00     0.0   75    79           79    +4
2    Willow Express       7    60.0    2    0.30     0.0   74    84           84    +10
3    Fast Duty            3    58.0    3    1.00     4.0   71    71           71    +0
4    Bushveld             3    50.0    4    3.25     4.0   55    53           53    -2
5    Sage King            3    56.0    5    5.05     4.0   72    63           63    -9
6    Count Your Chances   5    50.0    6    5.25     0.0   57    59           59    +2
7    Walled Garden        4    60.0    7    6.25     2.0   75    75           75    +0
8    Samthewiseman        5    54.0    8    7.75     0.0   61    67           67    +6
9    Mitch Got His Wish   4    60.0    9    14.25    2.0   72    75           75    +3
10   Bridge Of Spies      6    48.0    10   16.50    0.0   46    55           55    +9
99   Skyfull              2    50.0    99   0.00     0.0   -     59           59    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Nordic Rebel 75 81 79 +2 0.0 -
2 Willow Express 74 82 84 -2 0.0 -
3 Fast Duty Line 71 67 71 -4 4.0
4 Bushveld 55 56 53 +3 4.0 -
5 Sage King 72 72 63 +9 4.0 -
6 Count Your Chances 57 51 59 -8 0.0 -
7 Walled Garden 75 66 75 -9 2.0 -
8 Samthewiseman 61 52 67 -15 0.0 -
9 Mitch Got His Wish 72 69 75 -6 2.0 -
10 Bridge Of Spies 46 48 55 -7 0.0 -
99 Skyfull - 54 59 -5 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