Official NHA Assessment

Race 2: RACING TODAY MAIDEN PLATE (For all Maidens. R15 000 Win bonus ROA Members)

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Line Horse
Cherry Oh Baby
Reference for assessment
Exact Matches
0 / 10
Calculated = Official
Close Matches
2 / 10
Within 2 points
Significant Diffs
5 / 10
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    Satyagraha           3    60.0    1    0.00     4.0   -     71           6     +6
2    Cherry Oh Baby       4    57.0    2    3.00     2.0   71    71           71    +0
3    Royal Miracle        3    60.0    3    5.75     4.0   67    71           71    +4
4    Lava Lamp            3    57.0    4    5.80     4.0   -     65           65    +65
5    Chieftain's Shield   4    60.0    5    7.80     2.0   66    75           75    +9
6    Jinger Jam           3    57.0    6    8.05     4.0   -     65           65    +65
7    Summer Shade         4    60.0    7    11.05    2.0   56    75           75    +19
8    Ragamuffin           2    60.0    8    16.55    0.0   46    79           79    +33
99   Mystic Vision        3    60.0    99   0.00     4.0   -     71           71    +0
99   Futurenaire          3    60.0    99   0.00     4.0   -     71           71    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Satyagraha - 78 6 +72 4.0 -
2 Cherry Oh Baby Line 71 78 71 +7 2.0
3 Royal Miracle 67 66 71 -5 4.0 -
4 Lava Lamp - 84 65 +19 4.0 -
5 Chieftain's Shield 66 80 75 +5 2.0 -
6 Jinger Jam - 63 65 -2 4.0 -
7 Summer Shade 56 52 75 -23 2.0 -
8 Ragamuffin 46 45 79 -34 0.0 -
99 Mystic Vision - 66 71 -5 4.0 -
99 Futurenaire - 72 71 +1 4.0 -
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