Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

Back to Race
Line Horse
Vibe Sa
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
6 / 9
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Can You Danse        3    60.0    1    0.00     6.0   -     74           6     +6
2    Vibe Sa              2    60.0    2    0.80     4.0   78    78           78    +0
3    Cronus               3    60.0    3    1.50     6.0   -     74           74    +74
4    Mizzen Sword         3    60.0    4    3.00     6.0   73    74           74    +1
5    Sky On Fire          4    60.0    5    3.30     7.0   59    72           72    +13
6    Mystic Vision        3    58.5    6    4.00     6.0   -     71           71    +71
7    Kwagga Blitz         2    60.0    7    5.70     4.0   81    78           78    -3
8    Old Fashioned        3    60.0    8    5.90     6.0   -     74           74    +74
9    Letona               3    60.0    9    11.40    6.0   -     74           74    +74
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Can You Danse - 73 6 +67 6.0 -
2 Vibe Sa Line 78 92 78 +14 4.0
3 Cronus - 65 74 -9 6.0 -
4 Mizzen Sword 73 66 74 -8 6.0 -
5 Sky On Fire 59 60 72 -12 7.0 -
6 Mystic Vision - 66 71 -5 6.0 -
7 Kwagga Blitz 81 79 78 +1 4.0 -
8 Old Fashioned - 76 74 +2 6.0 -
9 Letona - 57 74 -17 6.0 -
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