Official NHA Assessment

Race 2: BETWAY TOTE REWARDS CLUB MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

Back to Race
Line Horse
Perform
Reference for assessment
Exact Matches
1 / 11
Calculated = Official
Close Matches
2 / 11
Within 2 points
Significant Diffs
6 / 11
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Antananarivo         4    60.0    1    0.00     6.0   56    46           46    -10
2    Perform              2    60.0    2    3.75     0.0   59    59           59    +0
3    Mount Etna           4    56.0    3    4.75     6.0   66    38           56    -10
4    Martinique           2    56.0    4    5.25     0.0   54    50           50    -4
5    All Rise             3    60.0    5    7.50     9.5   55    39           45    -10
6    Bomber Grigio        3    60.0    6    7.75     9.5   49    39           39    -10
7    Arabian Red          4    56.0    7    9.25     6.0   -     38           38    +38
8    Duellona             2    56.0    8    9.75     0.0   68    50           58    -10
9    Dame Colleen         3    60.0    9    32.00    9.5   41    39           39    -2
99   Paradise Flower      3    60.0    99   0.00     9.5   -     39           39    +0
99   City Lights          4    56.0    99   0.00     6.0   -     38           38    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Antananarivo 56 57 46 +11 6.0 -
2 Perform Line 59 54 59 -5 0.0
3 Mount Etna 66 79 56 +23 6.0 -
4 Martinique 54 66 50 +16 0.0 -
5 All Rise 55 50 45 +5 9.5 -
6 Bomber Grigio 49 42 39 +3 9.5 -
7 Arabian Red - 74 38 +36 6.0 -
8 Duellona 68 58 58 ✓ Match 0.0 -
9 Dame Colleen 41 46 39 +7 9.5 -
99 Paradise Flower - 37 39 -2 9.5 -
99 City Lights - 52 38 +14 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