| Team: | Kopla |
| Former Teams: | Lukko Espoo Blues KalPa Graz 99ers Vaasan Sport KooKoo Herning Blue Fox Starbulls Rosenheim |
| Position: | Right Wing |
| Height Ft: | 5 |
| Height In: | 10 |
| Weight Lb: | 172 |
| Shoots: | Right |
| Birth Date: | 6 August 1985 |
| Birth Place: | Eurajoki, Finland |
| Draft: | Undrafted |
| Career Start: | 2005 |
Petri Lammassaari (born August 6, 1985) is a Finnish professional ice hockey forward. He is currently playing with Kopla of the 2. Divisioona. He previously played in the Finnish Liiga with Lukko, Espoo Blues,[1] KalPa, Vaasan Sport and KooKoo.
Prior to the 2014–15 season, Jyrkkiö signed his first contract abroad in agreeing to a try-out contract with Austrian club, Graz 99ers in the EBEL on September 10, 2014.[2] After just 11 games with the 99ers, Lammassaari opted to return to Finland, signing with Vaasan Sport on November 6, 2014.
| Regular season | Playoffs | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Team | League | GP | PIM | GP | G | A | Pts | PIM | |||||
| 50 | 7 | 4 | 11 | 38 | — | — | — | — | — | |||||
| Lukko | SM-l | 56 | 13 | 13 | 26 | 46 | 3 | 0 | 2 | 2 | 2 | |||
| Lukko | SM-l | 56 | 12 | 12 | 24 | 30 | 3 | 2 | 0 | 2 | 10 | |||
| SM-l | 50 | 20 | 10 | 30 | 18 | 14 | 7 | 3 | 10 | 26 | ||||
| Blues | SM-l | 11 | 4 | 2 | 6 | 0 | 2 | 1 | 1 | 2 | 0 | |||
| Blues | SM-l | 53 | 19 | 5 | 24 | 24 | 18 | 7 | 5 | 12 | 8 | |||
| Blues | SM-l | 19 | 6 | 4 | 10 | 2 | — | — | — | — | — | |||
| SM-l | 14 | 2 | 4 | 6 | 2 | 4 | 0 | 1 | 1 | 2 | ||||
| 2 | 3 | 0 | 3 | 2 | — | — | — | — | — | |||||
| KalPa | Liiga | 41 | 2 | 4 | 6 | 16 | — | — | — | — | — | |||
| 11 | 3 | 7 | 10 | 8 | — | — | — | — | — | |||||
| Liiga totals | 350 | 85 | 58 | 143 | 176 | 44 | 17 | 12 | 29 | 48 | ||||