Official NHA Assessment

Race 2: BETONTAB.CO.ZA MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

Back to Race
Line Horse
Quick Run
Reference for assessment
Exact Matches
1 / 9
Calculated = Official
Close Matches
5 / 9
Within 2 points
Significant Diffs
4 / 9
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Bethany              3    56.0    1    0.00     5.0   63    57           57    -6
2    Quick Run            4    60.0    2    0.30     6.0   63    63           63    +0
3    Lady Osier           3    60.0    3    0.50     5.0   -     65           65    +65
4    Confetti Shower      3    60.0    4    1.75     5.0   -     65           65    +65
5    Love Bite            3    60.0    5    2.50     5.0   64    65           65    +1
6    Western View         3    60.0    6    6.00     5.0   -     65           65    +65
7    Nommo                4    60.0    7    9.00     6.0   35    63           63    +28
8    Song Of Liberty      3    60.0    8    10.75    5.0   66    65           65    -1
99   Risky Business       3    60.0    99   0.00     5.0   -     65           65    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Bethany 63 65 57 +8 5.0 -
2 Quick Run Line 63 61 63 -2 6.0
3 Lady Osier - 66 65 +1 5.0 -
4 Confetti Shower - 63 65 -2 5.0 -
5 Love Bite 64 65 65 ✓ Match 5.0 -
6 Western View - 67 65 +2 5.0 -
7 Nommo 35 42 63 -21 6.0 -
8 Song Of Liberty 66 52 65 -13 5.0 -
99 Risky Business - 75 65 +10 5.0 -
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