Official NHA Assessment

Race 1: 4RACING WELCOMES YOU MAIDEN PLATE (F & M) (For Maiden F & M. R15 000 Win bonus ROA Members)

Back to Race
Line Horse
Silk Garden
Reference for assessment
Exact Matches
0 / 15
Calculated = Official
Close Matches
1 / 15
Within 2 points
Significant Diffs
11 / 15
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Silk Garden          3    60.0    1    0.00     4.5   62    62           62    +0
2    Rio Supremo          3    58.5    2    0.50     4.5   56    59           59    +3
3    Have A Party         3    60.0    3    1.00     4.5   -     62           62    +62
4    Southern Style       5    60.0    4    3.00     0.0   62    71           71    +9
5    Damned If I Do       2    60.0    5    3.30     3.0   -     65           65    +65
6    Silver Princess      4    60.0    6    3.50     5.0   48    61           61    +13
7    Raining Rubies       5    60.0    7    4.75     0.0   67    71           71    +4
8    Primrose Path        2    60.0    8    6.00     3.0   59    65           65    +6
9    Mapule               2    60.0    9    12.25    3.0   56    65           65    +9
99   Liberty Flag         2    60.0    99   0.00     3.0   -     65           65    +0
99   Simply Magic         3    60.0    99   0.00     4.5   -     62           62    +0
99   United We Stand      3    60.0    99   0.00     4.5   -     62           62    +0
99   Zakynthos            3    60.0    99   0.00     4.5   -     62           62    +0
99   Linda's Legacy       3    60.0    99   0.00     4.5   -     62           62    +0
99   Paradise Flower      3    60.0    99   0.00     4.5   -     62           62    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Silk Garden Line 62 56 62 -6 4.5
2 Rio Supremo 56 52 59 -7 4.5 -
3 Have A Party - 64 62 +2 4.5 -
4 Southern Style 62 54 71 -17 0.0 -
5 Damned If I Do - 62 65 -3 3.0 -
6 Silver Princess 48 50 61 -11 5.0 -
7 Raining Rubies 67 75 71 +4 0.0 -
8 Primrose Path 59 77 65 +12 3.0 -
9 Mapule 56 49 65 -16 3.0 -
99 Liberty Flag - 59 65 -6 3.0 -
99 Simply Magic - 67 62 +5 4.5 -
99 United We Stand - 50 62 -12 4.5 -
99 Zakynthos - 35 62 -27 4.5 -
99 Linda's Legacy - 25 62 -37 4.5 -
99 Paradise Flower - 37 62 -25 4.5 -
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