Yves Bolognini has logged records in 254 patterns and Jan Poolen has logged records in 25 patterns.
They are competing for 1 record, and of these Yves Bolognini ranks better in 0 and Jan Poolen ranks better in 1.
| Pattern | Yves Bolognini | Jan Poolen |
|---|---|---|
| 5 ball backcrosses | 1c | 70c |