| Season | Team | Competition | MP | G | A | Rating | ||
|---|---|---|---|---|---|---|---|---|
| 2023 | D.C. United | MLS | 0 | 0 | 0 | 0 | 0 | – |
| 2022 | D.C. United | MLS | 0 | 0 | 0 | 0 | 0 | 6.5 |
| 2022 | D.C. United | MLS | 2 | 0 | 0 | 0 | 0 | 6.5 |
| 2021 | D.C. United | MLS | 10 | 0 | 0 | 0 | 0 | 6.4 |
| 2020 | Columbus Crew | MLS | 0 | 0 | 0 | 0 | 0 | – |
| 2019 | Columbus Crew | MLS | 3 | 0 | 0 | 0 | 0 | 6.3 |
| 2019 | Columbus Crew | MLS | 0 | 0 | 0 | 0 | 0 | 6.3 |
| 2018 | Columbus Crew | MLS | 5 | 0 | 0 | 0 | 0 | 6.6 |
| 2017 | LA Galaxy | MLS | 7 | 0 | 0 | 0 | 0 | 7.0 |
| 2016 | Sporting KC | MLS | 0 | 0 | 0 | 0 | 0 | – |
| 2016 | Sporting KC | MLS | 0 | 0 | 0 | 0 | 0 | – |
| 2015 | Sporting KC | MLS | 4 | 0 | 0 | 0 | 0 | 6.4 |
| 2015 | Sporting KC | MLS | 0 | 0 | 0 | 0 | 0 | 6.4 |
| 2014 | Sporting KC | MLS | 4 | 0 | 0 | 0 | 0 | – |
| 2013 | Sporting KC | MLS | 0 | 0 | 0 | 0 | 0 | – |
| 2012 | Sporting KC | MLS | 0 | 0 | 0 | 0 | 0 | – |
| 2011 | Sporting KC | MLS | 0 | 0 | 0 | 0 | 0 | – |
| 2010 | Sporting KC | MLS | 0 | 0 | 0 | 0 | 0 | – |
| Total | 35 | 0 | 0 | 0 | 0 | – | ||
| Date | From | To | Type | |
|---|---|---|---|---|
| - | SD Loyal | DC United | N/A | |
| 06 Oct 2022 | DC United | SD Loyal | Loan | |
| 01 Aug 2021 | Columbus | DC United | N/A | |
| - | SD Loyal | Columbus | N/A | |
| 03 Jan 2020 | Columbus | SD Loyal | Loan | |
| - | Hartford Ath | Columbus | N/A | |
| 04 Dec 2019 | Columbus | Hartford Ath | Loan | |
| 02 Sept 2018 | Galaxy | Columbus | N/A | |
| 03 Mar 2017 | Sporting KC | Galaxy | Free | |
| - | Sporting KC II | Sporting KC | N/A | |
| 03 Jan 2016 | Sporting KC | Sporting KC II | Loan | |
| - | San Antonio | Sporting KC | N/A | |
| - | Sporting KC | San Antonio | Loan | |
| 01 Jan 2014 | Orlando | Sporting KC | N/A | |
| - | Sporting KC | Orlando | Loan |
J. Kempin career history shows progression across clubs and competitions, including club timeline, national team appearances and overall career totals.