Official NHA Assessment

Race 5: RACING TODAY MR 80 HANDICAP (Open)

Back to Race
Line Horse
Swiss Walt
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
1 / 10
Within 2 points
Significant Diffs
8 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Tuscan Gold          2    61.0    1    0.00     4.0   82    96           82    +0
2    Swiss Walt           4    50.5    2    0.05     7.0   69    69           69    +0
3    Executor             5    61.0    3    1.30     0.0   82    104          104   +22
3    Cool Winter          2    60.5    3    1.30     4.0   81    95           95    +14
5    Ella's Delight       2    57.5    5    1.80     4.0   75    89           89    +14
6    Notorix              6    57.0    6    2.25     0.0   74    96           96    +22
7    Purple Operator      3    57.0    7    3.25     6.0   74    84           84    +10
8    Knockemstiff         2    53.0    8    4.50     4.0   66    80           80    +14
9    Fredericos Passion   3    55.5    9    5.75     6.0   79    81           81    +2
10   What A Winner        10   65.0    10   11.25    0.0   90    112          112   +22
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Tuscan Gold 82 84 82 +2 4.0 -
2 Swiss Walt Line 69 74 69 +5 7.0
3 Executor 82 87 104 -17 0.0 -
3 Cool Winter 81 78 95 -17 4.0 -
5 Ella's Delight 75 71 89 -18 4.0 -
6 Notorix 74 68 96 -28 0.0 -
7 Purple Operator 74 74 84 -10 6.0 -
8 Knockemstiff 66 65 80 -15 4.0 -
9 Fredericos Passion 79 70 81 -11 6.0 -
10 What A Winner 90 75 112 -37 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