Official NHA Assessment

Race 1: NEW TURF CARRIERS WORK RIDERS' MAIDEN PLATE (For all Maidens)

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Line Horse
None identified
Reference for assessment
Exact Matches
0 / 7
Calculated = Official
Close Matches
0 / 7
Within 2 points
Significant Diffs
4 / 7
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    Pure Maverick        2    59.0    1    0.00     1.0   -     -            -     +0
2    Rafiki               2    59.0    2    3.25     1.0   -     -            -     +0
3    Ola Bombshell        2    56.5    3    9.50     1.0   -     -            -     +0
4    Cosmic Empire        3    62.5    4    10.75    2.0   -     -            -     +0
5    Georgie George       3    62.0    5    13.50    2.0   63    -            59    -4
99   Winter's Joie        3    62.0    99   0.00     2.0   -     -            -     +0
99   Wylie Jack           6    62.0    99   0.00     0.0   -     -            -     +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Pure Maverick - 94 - +94 1.0 -
2 Rafiki - 67 - +67 1.0 -
3 Ola Bombshell - 72 - +72 1.0 -
4 Cosmic Empire - 33 - +33 2.0 -
5 Georgie George 63 63 59 +4 2.0 -
99 Winter's Joie - 56 - - 2.0 -
99 Wylie Jack - 61 - - 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