Official NHA Assessment

Race 1: WELCOME TO NELSON MANDELA BAY OPEN MAIDEN (F & M) (For all Maiden Fillies & Mares)

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Line Horse
Dynasty's Last
Reference for assessment
Exact Matches
0 / 17
Calculated = Official
Close Matches
2 / 17
Within 2 points
Significant Diffs
14 / 17
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    Up Up And Away       3    60.0    1    0.00     8.5   -     53           6     +6
2    Atlantic Pearl       2    50.0    2    1.25     5.5   69    39           59    -10
3    Dynasty's Last       5    49.5    3    2.00     0.0   49    49           49    +0
4    Midnight Music       3    55.5    4    2.75     8.5   61    44           51    -10
5    Pomerol              3    60.0    5    3.50     8.5   -     53           53    +53
6    Vino Rioja           2    51.5    6    5.00     5.5   61    42           51    -10
7    Ripsnorter           4    61.0    7    5.75     10.0  -     52           52    +52
8    Looking Good         2    51.5    8    6.00     5.5   62    42           52    -10
9    Mediterraneanflame   3    51.5    9    6.25     8.5   62    36           52    -10
10   Move To The Groove   3    52.0    10   7.00     8.5   40    37           37    -3
11   Money Galore         2    52.0    11   8.00     5.5   65    43           55    -10
12   Zumsee               2    53.5    12   11.25    5.5   68    46           58    -10
13   Elusive Bomba        3    56.0    13   12.00    8.5   61    45           51    -10
14   Caughtubysurprise    3    48.0    14   13.25    8.5   52    29           42    -10
15   Golden Alexia        3    59.0    15   13.75    8.5   68    51           58    -10
99   Sweet Cake           2    51.0    99   0.00     5.5   -     41           41    +0
99   Five Star Magic      4    55.5    99   0.00     10.0  -     41           41    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Up Up And Away - 82 6 +76 8.5 -
2 Atlantic Pearl 69 72 59 +13 5.5 -
3 Dynasty's Last Line 49 61 49 +12 0.0
4 Midnight Music 61 66 51 +15 8.5 -
5 Pomerol - 78 53 +25 8.5 -
6 Vino Rioja 61 60 51 +9 5.5 -
7 Ripsnorter - 57 52 +5 10.0 -
8 Looking Good 62 64 52 +12 5.5 -
9 Mediterraneanflame 62 60 52 +8 8.5 -
10 Move To The Groove 40 39 37 +2 8.5 -
11 Money Galore 65 63 55 +8 5.5 -
12 Zumsee 68 66 58 +8 5.5 -
13 Elusive Bomba 61 59 51 +8 8.5 -
14 Caughtubysurprise 52 52 42 +10 8.5 -
15 Golden Alexia 68 56 58 -2 8.5 -
99 Sweet Cake - 60 41 +19 5.5 -
99 Five Star Magic - 61 41 +20 10.0 -
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