Official NHA Assessment

Race 1: GREYVENSTEINS MAIDEN PLATE (F & M) (For Maiden Fillies and Mares)

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Line Horse
Wonder Woman
Reference for assessment
Exact Matches
0 / 9
Calculated = Official
Close Matches
2 / 9
Within 2 points
Significant Diffs
5 / 9
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    Runningforthestars   5    58.5    1    0.00     0.0   -     45           6     +6
2    Peronzada            3    60.0    2    0.10     7.5   51    33           41    -10
3    Wonder Woman         6    60.0    3    4.60     0.0   48    48           48    +0
4    Little Miss Kj       2    59.0    4    4.85     5.0   65    36           55    -10
5    Tide Is High         3    60.0    5    5.35     7.5   70    33           60    -10
6    Herewegojo           4    60.0    6    8.10     9.0   46    30           36    -10
7    Donna's Star         2    59.0    7    28.35    5.0   -     36           36    +36
8    Nellie Bly           2    59.0    8    99.98    5.0   71    36           61    -10
99   Shesakinda Magic     3    60.0    99   0.00     7.5   -     33           33    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Runningforthestars - 45 6 +39 0.0 -
2 Peronzada 51 56 41 +15 7.5 -
3 Wonder Woman Line 48 43 48 -5 0.0
4 Little Miss Kj 65 53 55 -2 5.0 -
5 Tide Is High 70 57 60 -3 7.5 -
6 Herewegojo 46 35 36 -1 9.0 -
7 Donna's Star - - 36 -36 5.0 -
8 Nellie Bly 71 71 61 +10 5.0 -
99 Shesakinda Magic - 58 33 +25 7.5 -
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