| Date | Team | Transaction | |
|---|---|---|---|
| Oct 3, 2025 | Washington Capitals | Assigned to AHL | |
| Sep 27, 2024 | Washington Capitals | Signed to an entry level contract. |
Player cards present an infographic of a players performance. In this case it shows the player performance over a 3 season span. Each square is separated into three separate sub-boxes with the two smaller boxes on top representing the past two seasons and the larger box on the bottom representing the current or most recent season. This allows the reader to guage how consistent a player has been, and if early in the season it can help identify whether a players performance may be impacted by small sample size and subject to regression or is consistent with recent past performance.
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| Season | Team(s) | GP | TOI | G/60 | A/60 | Pts/60 | xG/60 | GAE/60 | Sh% | xSh% | Sh%AE | %SA Rush | %SA Reb. |
|---|
| Season | Team(s) | GP | TOI | SAF/60 | GF/60 | xGF/60 | SAA/60 | GA/60 | xGA/60 | GF% | xGF% | xGF Rel | xGA Rel | xGF% Rel |
|---|
| Skating | Shooting | Zone Time | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | GP | Top Speed | Bursts>20/mi | Avg. Speed | ES Avg. Speed | Top Speed | Avg. Speed | %Long Range | %Mid Range | %High Danger | ES DZ% | ES NZ% | ES OZ% |
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| Percentile 0-25 | Percentile 25-50 | Percentile 50-75 | Percentile 75-100 |
| Type | Statistic | Definition |
|---|---|---|
| Individual | G/60 | Goals Against per 60 minutes. |
| Individual | A/60 | Assists per 60 minutes. |
| Individual | Pts/60 | Points per 60 minutes. |
| Individual | xG/60 | Expected Goals per 60 minutes. |
| Individual | GAE/60 | Goals Above Expected (G/60 - xG/60). |
| Individual | Sh% | Shooting Percentage. |
| Individual | xSh% | Expected Shooting Percentage. |
| Individual | Sh%AE | Shooting percentage above expected (Sh% - xSh%). |
| Individual | %SA Rush | Percentage of shot attempts determined to be on the rush. |
| Individual | %SA Reb. | Percentage of shot attempts determined to be from rebounds. |
| On Ice | SAF/60 | Shot Attempts For per 60 minutes. |
| On Ice | GF/60 | Goals For per 60 minutes. |
| On Ice | xGF/60 | Expected Goals For per 60 minutes. |
| On Ice | SAA/60 | Shot Attempts Against per 60 minutes (lower is better). |
| On Ice | GA/60 | Goals Against per 60 minutes (lower is better). |
| On Ice | xGA/60 | Expected Goals Against per 60 minutes (lower is better). |
| On Ice | GF% | Goals For Percentage = Goals For / (Goals For + Goals Against) |
| On Ice | xGF% | Expected Goals For Percentage = Expected Goals For / (Expected Goals For + Expected Goals Against) |
| On Ice | xGF Rel | xGF/60 when On Ice - xGF/60 when not On Ice. |
| On Ice | xGA Rel | xGA/60 when On Ice - xGA/60 when not On Ice (lower is better). |
| On Ice | xGF% Rel | xGF% when On Ice - xGF% when not On Ice. |
Eriks Mateiko scores first AHL goal in Hershey Bears loss at Russian Machine Never Breaks (Fri Nov 28, 2025)
Capitals prospects Ilya Protas and Eriks Mateiko explain the origins of their ‘Hammer’ and ‘Moose’ nicknames: ‘I have no clue what is moose’ at Russian Machine Never Breaks (Tue Jul 15, 2025)
Eriks Mateiko signed a $2,667,500 3-year contract with the Washington Capitals and General Manager Chris Patrick on September 27, 2024 with an AAV of $889,167. This contract will start in 2024-25 and end after the 2028-29 season. In the first season of the contract the cap hit was equivalent to 1.01% of the salary cap.
| Regular Season | Playoffs | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | League | Team | GP | G | A | Pts | +/- | PIM | Shots | Sh% | TOI/G | GP | G | A | Pts | +/- | PIM | Shots | Sh% | TOI/G |
| 2017-18 | WSI U13 | Latvia Selects U13 | 6 | 2 | 3 | 5 | ||||||||||||||
| 2018-19 | WSI U14 | Latvia Selects U14 | 7 | 4 | 4 | 8 | ||||||||||||||
| 2019-20 | Latvia U17 | Tukums U17 | 20 | 11 | 10 | 21 | 6 | |||||||||||||
| 2020-21 | Latvia2 | HS Riga 17 | 7 | 1 | 3 | 4 | 4 | |||||||||||||
| 2021-22 | Latvia | HS Riga | 20 | 6 | 7 | 13 | 2 | |||||||||||||
| 2021-22 | EYOF | Latvia U18 | 4 | 0 | 1 | 1 | -3 | 4 | ||||||||||||
| 2021-22 | WJC-18 | Latvia U18 | 4 | 2 | 0 | 2 | -3 | |||||||||||||
| 2021-22 | MHL | HK Riga | 1 | 0 | 0 | 0 | ||||||||||||||
| 2021-22 | Latvia2 | HS Riga 17 | 20 | 15 | 12 | 27 | 12 | 6 | 6 | 3 | 9 | 6 | ||||||||
| 2022-23 | WJC-18 | Latvia U18 | 5 | 1 | 1 | 2 | -5 | |||||||||||||
| 2022-23 | WJAC-19 | Latvia U18 | 2 | 0 | 0 | 0 | ||||||||||||||
| 2022-23 | QMJHL | Saint John Sea Dogs | 62 | 16 | 20 | 36 | -14 | 25 | 5 | 1 | 1 | -8 | 6 | |||||||
| 2023-24 | QMJHL | Saint John Sea Dogs | 49 | 23 | 20 | 43 | 20 | |||||||||||||
| 2023-24 | WJC-20 | Latvia U20 | 5 | 1 | 0 | 1 | -2 | 4 | ||||||||||||
| 2024-25 | QMJHL | Saint John Sea Dogs | 23 | 14 | 5 | 19 | +7 | 14 | ||||||||||||
| 2024-25 | WJC-20 | Latvia U20 | 5 | 5 | 0 | 5 | +2 | |||||||||||||
| 2024-25 | Memorial Cup | Rimouski Océanic | 3 | 1 | 0 | 1 | -4 | 2 | ||||||||||||
| 2024-25 | QMJHL | Rimouski Océanic | 24 | 12 | 10 | 22 | +10 | 6 | 18 | 7 | 4 | 11 | -3 | 4 | ||||||
| 2024-25 | QMJHL | Rimouski Océanic | 24 | 12 | 10 | 22 | +10 | 6 | 18 | 7 | 4 | 11 | -3 | 4 | ||||||
| 2025-26 | AHL | Hershey Bears | 7 | 0 | 1 | 1 | 4 | |||||||||||||