Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 HK | 4 | 2 | 0 | 2 | 0 | 0 | 0 | 0 |
 Grindavík | 4 | 2 | 1 | 1 | 1 | 2 | 2 | 0 |
| ÍA | 3 | 1 | 0 | 2 | 0 | 0 | 0 | 0 |
 Thróttur Reykjavík | 3 | 0 | 0 | 3 | 1 | 0 | 2 | 0 |
 KR Reykjavík | 3 | 0 | 1 | 2 | 0 | 0 | 1 | 0 |
 Valur | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Fram | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Vestri | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Stjarnan | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Thór | 2 | 0 | 1 | 1 | 1 | 1 | 0 | 0 |
 Leiknir Reykjavík | 2 | 0 | 0 | 2 | 1 | 1 | 0 | 0 |
 Keflavík | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 0 |
 Njardvík | 2 | 0 | 0 | 2 | 0 | 0 | 1 | 0 |
 ÍR | 2 | 2 | 0 | 0 | 1 | 0 | 2 | 0 |
| Selfoss | 2 | 1 | 0 | 1 | 1 | 0 | 0 | 0 |
 Víkingur Reykjavík | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Fylkir | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Sindri | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
 Breidablik | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 KA Akureyri | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Armenia U17 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Croatia U17 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Scotland U17 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Guðmundur Tyrfingsson plays as a forward for Fylkir. Throughout his career, Guðmundur Tyrfingsson has scored 14 goals and provided 11 assists in 94 appearances across 3 clubs. With a career goal ratio of 0.15 per match, Guðmundur Tyrfingsson is a prolific scorer who consistently finds the back of the net. Among the clubs he has represented — Fylkir, Selfoss, ÍA — Guðmundur Tyrfingsson was most prolific at Selfoss, where he scored 9 goals in 30 appearances.
