Tim Southee had made such a unique batting record in his debut test, which will be difficult to break
New Zealand fast bowler Tim Southee retired from Test cricket after the England series last year. Till then played 107 Tests and took 391 wickets. In 2008, Napier made a Test debut against England and the special thing is that in the second innings, he made 77* (with 9 sixes on just 40 balls).
Many batsmen have scored bigger than this on their debut, but the special thing about this 77* score is that till the end it was his top score in his Test career. He could not cross this score in any of the 154 innings of 106 Tests after this. The truth is that after this, he never made a score of more than 70.
Now, in the list of those who score their top test in their debut tests, the record of the longest Test career is named after Saudi. However, the record of playing the most Tests is not in his name without improving his top test score. The names of Alec Stuart and Stuart Broad are the most special in this context and both of them did not cross their top test score in the most Tests, even though this top score did not score in their debut test:
Stuart Broad (England): He scored 169 runs in his 32nd Test (his only Test 100) and after that he could not even score 100 in any of the 135 Tests.
Alex Stuart (England): He scored 190 runs in his 18th Test and it was his top test score till the end, although he played 115 more Tests after this.
In the score made on debut, in the record of playing the most Test without any improvement, 3 more cricketers after Tim Southea are:
Darren Goff (England): 65 runs in his debut test (against New Zealand, Old Trafford in 1994) and then played in 57 Tests played.
Romesh Kaluvitarna (Sri Lanka): In August 1992, in his debut test against Australia in August 1992, he failed to improve the score in the next 48 Tests at 100 (132*) in his debut test, though made 100 twice.
Andrew Hudson (South Africa): This opener batsman scored 163 runs in his first Test against the West Indies in 1991-92, but could not cross the score in 34 Tests and played in the 34 Tests played, while also made three and 100.