Official NHA Assessment

Race 8: NEXT TURFFONTEIN RACEMEETING SUNDAY 19 JUNE MAIDEN PLATE (For all Maidens)

Back to Race
Line Horse
Global Approach
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
1 / 9
Within 2 points
Significant Diffs
5 / 9
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Tomorrow's Vision    2    56.0    1    0.00     0.0   -     51           6     +6
2    Global Approach      4    60.0    2    0.05     0.5   58    58           58    +0
3    Grand Escape         4    60.0    3    0.35     0.5   52    63           63    +11
4    Main Mission         2    52.0    4    0.40     0.0   -     48           48    +48
5    Knock Twice          3    60.0    5    1.90     1.5   59    59           59    +0
6    San Quintin          6    60.0    6    3.00     0.0   -     61           61    +61
7    Prosper's Gift       2    54.5    7    4.75     0.0   -     48           48    +48
8    Big Guy              3    60.0    8    6.00     1.5   -     56           56    +56
99   Bright Blue Sky      2    56.0    99   0.00     0.0   -     51           51    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tomorrow's Vision - 75 6 +69 0.0 -
2 Global Approach Line 58 56 58 -2 0.5
3 Grand Escape 52 56 63 -7 0.5 -
4 Main Mission - 71 48 +23 0.0 -
5 Knock Twice 59 55 59 -4 1.5 -
6 San Quintin - 58 61 -3 0.0 -
7 Prosper's Gift - 64 48 +16 0.0 -
8 Big Guy - 60 56 +4 1.5 -
99 Bright Blue Sky - 76 51 +25 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