Official NHA Assessment

Race 2: FOR HOSPITALITY BOOKINGS CALL 011 681 1796 MAIDEN PLATE (F & M) (For Maiden F&M. R15 000 Win bonus ROA Members)

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Line Horse
Empress Wu
Reference for assessment
Exact Matches
1 / 13
Calculated = Official
Close Matches
2 / 13
Within 2 points
Significant Diffs
11 / 13
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Pearl In Her Crown   2    57.0    1    0.00     0.0   81    16           16    -65
2    Cat O'clock          3    60.0    2    5.00     8.0   72    6            62    -10
3    Instant Attraction   3    54.5    3    5.25     8.0   -     -5           -     +0
4    Empress Wu           3    57.0    4    9.00     8.0   -     -            -     +0
5    Pass The Baton       4    60.0    5    9.25     5.0   56    12           46    -10
6    Line In The Sky      4    60.0    6    10.25    5.0   72    12           62    -10
7    Bella's Charm        3    57.0    7    11.50    8.0   75    -            69    -6
8    Bella Boop Boop      3    57.0    8    11.55    8.0   65    -            58    -7
9    Hokaai My Meisie     2    60.0    9    13.00    0.0   63    22           53    -10
10   Ruby Rebel           3    57.0    10   15.00    8.0   -     -            -     +0
11   To Be Free           3    57.0    11   17.50    8.0   -     -            -     +0
12   Flight Time          2    57.0    12   17.75    0.0   -     16           16    +16
13   Lady Camellia        2    57.0    13   18.50    0.0   -     16           16    +16
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pearl In Her Crown 81 72 16 +56 0.0 -
2 Cat O'clock 72 71 62 +9 8.0 -
3 Instant Attraction - 60 - +60 8.0 -
4 Empress Wu Line - 61 - +61 8.0
5 Pass The Baton 56 48 46 +2 5.0 -
6 Line In The Sky 72 72 62 +10 5.0 -
7 Bella's Charm 75 59 69 -10 8.0 -
8 Bella Boop Boop 65 58 58 ✓ Match 8.0 -
9 Hokaai My Meisie 63 63 53 +10 0.0 -
10 Ruby Rebel - 80 - +80 8.0 -
11 To Be Free - 48 - +48 8.0 -
12 Flight Time - 63 16 +47 0.0 -
13 Lady Camellia - - 16 -16 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