| 24 certificates |
| Contest | Call Used | Category | Score | Certificate Links |
| 2019 DX CW |
JA1OHP |
Single Operator, Low Power |
2,640 |
 |
 |
| 2017 DX CW |
JA1OHP |
Single Operator, Low Power |
3,300 |
 |
 |
| 2016 IARU HF |
JA1OHP |
Single Operator, CW Only, Low Power |
3,198 |
 |
 |
| 2016 DX Phone |
JA1OHP |
Single Operator, 15 Meters |
60 |
 |
 |
| 2016 DX CW |
JA1OHP |
Single Operator, Low Power |
8,613 |
 |
 |
| 2015 10M |
JA1OHP |
Single Operator, Mixed Mode, Low Power |
924 |
 |
 |
| 2015 IARU HF |
JA1OHP |
Single Operator, Mixed Mode, Low Power |
9,280 |
 |
 |
| 2015 DX CW |
JA1OHP |
Single Operator, Low Power |
17,289 |
 |
 |
| 2014 IARU HF |
JA1OHP |
Single Operator, CW Only, Low Power |
23,729 |
 |
 |
| 2014 DX Phone |
JA1OHP |
Single Operator, Low Power |
5,580 |
 |
 |
| 2014 DX CW |
JA1OHP |
Single Operator, Low Power |
47,259 |
 |
 |
| 2013 10M |
JA1OHP |
Single Operator, Mixed Mode, Low Power |
9,102 |
 |
 |
| 2013 DX Phone |
JA1OHP |
Single Operator, Low Power |
2,772 |
 |
 |
| 2013 DX CW |
JA1OHP |
Single Operator, Low Power |
14,520 |
 |
 |
| 2013 RTTY RU |
JA1OHP |
Single Operator, Low Power |
660 |
 |
 |
| 2012 10M |
JA1OHP |
Single Operator, Mixed Mode, Low Power |
1,312 |
 |
 |
| 2012 DX Phone |
JA1OHP |
Single Operator, Low Power |
9,576 |
 |
 |
| 2012 DX CW |
JA1OHP |
Single Operator, Low Power |
35,292 |
 |
 |
| 2011 IARU HF |
JA1OHP |
Single Operator, Mixed Mode, Low Power |
966 |
 |
 |
| 2011 DX CW |
JA1OHP |
Single Operator, Low Power |
16,896 |
 |
 |
| 2010 DX Phone |
JA1OHP |
Single Operator, Low Power |
1,728 |
 |
 |
| 2010 DX CW |
JA1OHP |
Single Operator, 15 Meters |
14,580 |
 |
 |
| 2007 IARU HF |
JA1OHP |
Single Operator, CW Only, Low Power |
10,575 |
 |
 |
| 1982 10M |
JA1OHP |
Single Operator, Mixed Mode, High Power |
12,096 |
 |
 |