| Swimming |
2006 World Junior Swimming Championships |
Rio de Janeiro |
 BRA |
200 m Individual Medley, Men |
🥈 |
 GBR |
|
| Swimming |
2007 European Short Course Swimming Championships |
Debrecen |
 HUN |
400 m Freestyle, Men |
29 |
GBR |
|
| Swimming |
2007 European Short Course Swimming Championships |
Debrecen |
HUN |
400 m Individual Medley, Men |
21 |
GBR |
|
| Swimming |
2008 European Junior Swimming Championships |
Beograd |
 SRB |
400 m Freestyle, Men |
🥉 |
GBR |
|
| Swimming |
2008 European Junior Swimming Championships |
Beograd |
SRB |
200 m Individual Medley, Men |
🥇 |
GBR |
|
| Swimming |
2008 European Junior Swimming Championships |
Beograd |
SRB |
400 m Individual Medley, Men |
🥈 |
GBR |
|
| Swimming |
2008 Swim World Cup |
Berlin |
 GER |
400 m Individual Medley, Men |
🥈 |
GBR |
|
| Swimming |
2008 European Short Course Swimming Championships |
Rijeka |
 CRO |
100 m Individual Medley, Men |
39 |
GBR |
|
| Swimming |
2008 European Short Course Swimming Championships |
Rijeka |
CRO |
200 m Individual Medley, Men |
33 |
GBR |
|
| Swimming |
2008 European Short Course Swimming Championships |
Rijeka |
CRO |
400 m Individual Medley, Men |
18 |
GBR |
|
| Swimming |
2011 European Short Course Swimming Championships |
Szczecin |
 POL |
200 m Individual Medley, Men |
21 |
GBR |
|
| Swimming |
2011 European Short Course Swimming Championships |
Szczecin |
POL |
400 m Individual Medley, Men |
18 |
GBR |
|
| Swimming |
2018 Commonwealth Games |
Gold Coast |
 AUS |
50 m Backstroke, Men |
4 |
 WAL |
as Xavier Castelli |
| Swimming |
2018 Commonwealth Games |
Gold Coast |
AUS |
100 m Backstroke, Men |
5 |
WAL |
as Xavier Castelli |
| Swimming |
2018 Commonwealth Games |
Gold Coast |
AUS |
200 m Backstroke, Men |
8 |
WAL |
as Xavier Castelli |
| Swimming |
2018 Commonwealth Games |
Gold Coast |
AUS |
200 m Individual Medley, Men |
8 |
WAL |
as Xavier Castelli |