Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY MAIDEN PLATE (For Maidens R15 000 Win Bonus ROA Members)

Back to Race
Line Horse
Raptor Island
Reference for assessment
Exact Matches
0 / 14
Calculated = Official
Close Matches
1 / 14
Within 2 points
Significant Diffs
10 / 14
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Donny Tee            4    59.0    1    0.00     10.0  76    53           53    -23
2    Raptor Island        2    60.0    2    3.25     5.5   64    64           64    +0
3    This Time Round      2    60.0    3    6.75     5.5   54    64           64    +10
4    Concerto             4    56.5    4    8.25     10.0  -     48           48    +48
5    Greek Mafia          5    56.0    5    8.50     0.0   47    67           67    +20
6    Trippis Tune         3    59.0    6    10.25    8.5   -     56           56    +56
7    Big Five             3    60.0    7    14.25    8.5   55    58           58    +3
8    Royal Statesman      2    57.5    8    17.50    5.5   69    59           59    -10
9    Lontano              2    56.5    9    19.50    5.5   -     57           57    +57
10   Pantador             2    59.0    10   21.25    5.5   -     62           62    +62
11   Lady Zundra          3    56.5    11   31.00    8.5   -     51           51    +51
12   For The Boytjies     4    57.5    12   36.50    10.0  -     50           50    +50
99   Lord Capulet         3    59.0    99   0.00     8.5   -     56           56    +0
99   Deep Dive            3    60.0    99   0.00     8.5   -     58           58    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Donny Tee 76 68 53 +15 10.0 -
2 Raptor Island Line 64 61 64 -3 5.5
3 This Time Round 54 54 64 -10 5.5 -
4 Concerto - 73 48 +25 10.0 -
5 Greek Mafia 47 45 67 -22 0.0 -
6 Trippis Tune - 70 56 +14 8.5 -
7 Big Five 55 53 58 -5 8.5 -
8 Royal Statesman 69 54 59 -5 5.5 -
9 Lontano - 47 57 -10 5.5 -
10 Pantador - 40 62 -22 5.5 -
11 Lady Zundra - 10 51 -41 8.5 -
12 For The Boytjies - - 50 -50 10.0 -
99 Lord Capulet - 55 56 -1 8.5 -
99 Deep Dive - 39 58 -19 8.5 -
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