Jan Poolen has logged records in 27 patterns and Yves Bolognini has logged records in 254 patterns.
They are competing for 1 record, and of these Jan Poolen ranks better in 1 and Yves Bolognini ranks better in 0.
| Pattern | Jan Poolen | Yves Bolognini |
|---|---|---|
| 5 ball backcrosses | 85c | 1c |