Captains who have scored the fifties on their world cup debut – FDM Karunaratne and AJ Finch join the elite list
FDM Karunaratne of Sri Lanka {52 not out against New Zealand at Cardiff on 01.06.19} and AJ Finch of Australia {66 against Afghanistan at Bristol on 01.06.19} scored fifties to become the 24th and 25th captain to score fifty on captaincy debut in World Cup. The following table lists the performance of these captains
| No | Player | Runs | Inns | Team | Oppn | Ground | Start Date |
| 1 | Asif Iqbal | 53 | 2 | Pak | Aus | Leeds | 07 Jun 1975 |
| 2 | GM Turner | 171* | 1 | NZl | EAF | Birmingham | 07 Jun 1975 |
| 3 | Majid Khan | 60 | 1 | Pak | Win | Birmingham | 11 Jun 1975 |
| 4 | DAG Fletcher | 69* | 1 | Zim | Aus | Nottingham | 09 Jun 1983 |
| 5 | Imran Khan | 56* | 1 | Pak | Srl | Swansea | 09 Jun 1983 |
| 6 | GP Howarth | 76 | 2 | NZl | Srl | Bristol | 13 Jun 1983 |
| 7 | MD Crowe | 100* | 1 | NZl | Aus | Auckland | 22 Feb 1992 |
| 8 | GA Gooch | 51 | 1 | Eng | Ind | Perth | 22 Feb 1992 |
| 9 | Javed Miandad | 57* | 1 | Pak | Win | Melbourne | 23 Feb 1992 |
| 10 | KC Wessels | 81* | 2 | RSA | Aus | Sydney | 26 Feb 1992 |
| 11 | AJ Stewart | 77 | 2 | Eng | RSA | Melbourne | 12 Mar 1992 |
| 12 | WJ Cronje | 57 | 1 | RSA | UAE | Rawalpindi | 16 Feb 1996 |
| 13 | Aamer Sohail | 55 | 2 | Pak | Ind | Bengaluru | 09 Mar 1996 |
| 14 | ST Jayasuriya | 120 | 1 | Srl | NZl | Bloemfontein | 10 Feb 2003 |
| 15 | RT Ponting | 53 | 1 | Aus | Pak | Johannesburg | 11 Feb 2003 |
| 16 | DPMD Jayawardene | 85 | 1 | Srl | Ber | Port of Spain | 15 Mar 2007 |
| 17 | GC Smith | 67 | 1 | RSA | Net | Basseterre | 16 Mar 2007 |
| 18 | Shakib Al Hasan | 55 | 2 | Ban | Ind | Dhaka | 19 Feb 2011 |
| 19 | KC Sangakkara | 92 | 1 | Srl | Can | Hambantota | 20 Feb 2011 |
| 20 | LRPL Taylor | 74 | 1 | NZl | Can | Mumbai | 13 Mar 2011 |
| 21 | GJ Bailey | 55 | 1 | Aus | Eng | Melbourne | 14 Feb 2015 |
| 22 | Misbah-ul-Haq | 76 | 2 | Pak | Ind | Adelaide | 15 Feb 2015 |
| 23 | BRM Taylor | 121 | 2 | Zim | Ire | Hobart | 07 Mar 2015 |
| 24 | FDM Karunaratne | 52* | 1 | Srl | NZl | Cardiff | 01 Jun 2019 |
| 25 | AJ Finch | 66 | 2 | Aus | Afg | Bristol | 01 Jun 2019 |
FDM Karunaratne became the fourth Sri Lankan captain to score fifty on captaincy debut in World Cup. The following table lists the performance of these captains
| No | Player | Runs | Inns | Team | Oppn | Ground | Start Date |
| 1 | ST Jayasuriya | 120 | 1 | Srl | NZl | Bloemfontein | 10 Feb 2003 |
| 3 | DPMD Jayawardene | 85 | 1 | Srl | Ber | Port of Spain | 15 Mar 2007 |
| 3 | KC Sangakkara | 92 | 1 | Srl | Can | Hambantota | 20 Feb 2011 |
| 4 | FDM Karunaratne | 52* | 1 | Srl | NZl | Cardiff | 01 Jun 2019 |
AJ Finch became the third Australian captain after RT Ponting and GJ Bailey to perform such a feat. The following table lists the performance of these captains
| No | Player | Runs | Inns | Team | Oppn | Ground | Start Date |
| 1 | RT Ponting | 53 | 1 | Aus | Pak | Johannesburg | 11 Feb 2003 |
| 2 | GJ Bailey | 55 | 1 | Aus | Eng | Melbourne | 14 Feb 2015 |
| 3 | AJ Finch | 66 | 2 | Aus | Afg | Bristol | 01 Jun 2019 |