Official NHA Assessment

Race 7: PLAY SOCCER 6, 10 AND 13 WORK RIDERS MR 68 HANDICAP (Open)

Back to Race
Line Horse
Viva De Janeiro
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 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    Volte Face           3    59.5    1    0.00     2.5   67    58           67    +0
2    Viva De Janeiro      5    60.0    2    1.25     0.0   68    68           68    +0
3    Putins Promise       5    61.0    3    1.50     0.0   70    69           69    -1
4    Thambi               5    58.5    4    4.00     0.0   65    62           62    -3
5    Beguiling            3    52.0    5    4.25     2.5   50    44           44    -6
6    His Master's Voice   2    60.5    6    4.75     0.0   69    65           65    -4
7    Secret Is Ours       4    61.5    7    11.75    1.0   71    65           65    -6
8    Aunt Pittypat        3    58.5    8    21.75    2.5   65    56           56    -9
99   Carnelo              6    57.0    99   0.00     0.0   -     58           58    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Volte Face 67 66 67 -1 2.5 -
2 Viva De Janeiro Line 68 50 68 -18 0.0
3 Putins Promise 70 73 69 +4 0.0 -
4 Thambi 65 55 62 -7 0.0 -
5 Beguiling 50 50 44 +6 2.5 -
6 His Master's Voice 69 69 65 +4 0.0 -
7 Secret Is Ours 71 66 65 +1 1.0 -
8 Aunt Pittypat 65 65 56 +9 2.5 -
99 Carnelo - 75 58 +17 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