Official NHA Assessment

Race 3: BET WITH TOTE MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

Back to Race
Line Horse
Water Hyacinth
Reference for assessment
Exact Matches
1 / 10
Calculated = Official
Close Matches
3 / 10
Within 2 points
Significant Diffs
4 / 10
More than 5 points
Detailed Assessment
------------------------------------------------------------------------------------------------------------------------
Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
------------------------------------------------------------------------------------------------------------------------
1    Thyme To Talk        2    55.5    1    0.00     2.0   -     64           6     +6
2    Queraristinyferari   2    57.0    2    1.05     2.0   -     67           67    +67
3    Water Hyacinth       2    58.5    3    1.35     2.0   70    70           70    +0
4    Lacryma Christi      2    56.0    4    7.15     2.0   59    65           65    +6
5    Cartel Queen         2    56.0    5    7.65     2.0   65    65           65    +0
6    Sarsden Surprise     2    57.0    6    9.85     2.0   -     67           67    +67
7    Alpine Diamond       3    60.0    7    11.35    3.0   52    71           71    +19
8    Sherpa Queen         3    56.0    8    11.95    3.0   -     63           63    +63
99   Winter Miracle       3    60.0    99   0.00     3.0   -     71           71    +0
99   Berrington Blew      2    60.0    99   0.00     2.0   -     73           73    +0
------------------------------------------------------------------------------------------------------------------------

Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Thyme To Talk - - 6 - 2.0 -
2 Queraristinyferari - - 67 - 2.0 -
3 Water Hyacinth Line 70 70 70 ✓ Match 2.0
4 Lacryma Christi 59 58 65 -7 2.0 -
5 Cartel Queen 65 64 65 -1 2.0 -
6 Sarsden Surprise - - 67 - 2.0 -
7 Alpine Diamond 52 52 71 -19 3.0 -
8 Sherpa Queen - - 63 -63 3.0 -
99 Winter Miracle - 60 71 -11 3.0 -
99 Berrington Blew - 74 73 +1 2.0 -
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