Scottish number one Alan Clyne will make his debut in the main draw of the Canary Wharf Classic after beating two English rivals in the qualifying competition of the PSA World Tour International 50 event celebrating its tenth anniversary in London.
The 25-year-old Hinds suffered a conduct game penalty after taking more than five minutes to repair a broken shoelace.
Clyne squeezed home 12-10 in a fourth-game tie-break against Kemp and will now face against England's No4 seed Peter Barker in the main draw.
"This is my first time in the tournament and I'm very pleased to get through to the first round," said the 26-year-old from Edinburgh. "I have played Jonathan a few times in the past and I know he likes to attack.
"I knew I had to punish any loose balls and I was happy with the way it worked today, but it could be a different on the glass court," added the world No27.
Rising Egyptian star Mohd Ali Anwar Reda overcame South African Shaun le Roux in an ill-tempered five-setter and then urged his fellow professionals to mind their manners if squash succeeds in its bid to be granted Olympic status later this year.
After Le Roux had received a conduct stroke for comments to the referee, Reda said: "I thought the referee did well on most decisions and it was a shame there were some incidents.
"The crowd come here to watch the squash, not to listen to players arguing with the referee," added the world No48 from Cairo. "Sometimes it can be funny, and that's OK, but if there is too much talking it gets in the way of the squash."
Reda, who faces England's world No12 Tom Richards in the first round, further added: "If we are serious about squash being in the Olympics then the players should not argue. It just doesn't look good."
After beating Dane Kristian Frost Olesen in a Nordic battle on Saturday, the 22-year-old world No53 produced another display of solid, intelligent, controlled squash to beat a player 21 places above him in the PSA rankings.
Mustonen's reward is a place in the first round against England's world No17 Adrian Grant, one of several Londoners looking for success on home soil.
The final qualifying spot went to another Londoner as tall left-hander Adrian Waller, from Enfield, overcame Surrey's Joe Lee to line up a mouth-watering clash with No3 seed Mohamed El Shorbagy, the 22-year-old Egyptian who was runner-up to fellow countryman Ramy Ashour in the World Championship final in Qatar in December.
Updated 1st round draw:
 Nick Matthew (ENG) v Miguel Angel Rodriguez (COL)
Alister Walker (BOT) v Stephen Coppinger (RSA)
Tom Richards (ENG) v [Q] Mohd Ali Anwar Reda (EGY)
 Peter Barker (ENG) v [Q] Alan Clyne (SCO)
 Mohamed El Shorbagy (EGY) v [Q] Adrian Waller (ENG)
Adrian Grant (ENG) v [Q] Henrik Mustonen (FIN)
Daryl Selby (ENG) v Simon Rosner (GER)
 James Willstrop (ENG) v [WC] Charles Sharpes (ENG)
Alan Clyne (SCO) bt Jonathan Kemp (ENG) 11-6, 8-11, 11-9, 12-10 (43m)
Henrik Mustonen (FIN) bt Gregoire Marche (FRA) 11-6, 7-11, 11-5, 11-4 (46m)
Mohd Ali Anwar Reda (EGY) bt Shaun le Roux (RSA) 11-9, 11-9, 2-11, 7-11, 11-6 (80m)
Adrian Waller (ENG) bt Joe Lee (ENG) 11-6, 12-10, 11-6 (62m)
1st qualifying round:
Alan Clyne (SCO) bt Joel Hinds (ENG) 12-10, 11-4, 11-6 (45m)
Jonathan Kemp (ENG) bt Robbie Temple (ENG) 9-11, 11-8, 11-3, 14-12 (65m)
Henrik Mustonen (FIN) bt Kristian Frost Olesen (DEN) 11-7, 11-7, 10-12, 11-7 (58m)
Gregoire Marche (FRA) bt Chris Ryder (ENG) 12-10, 5-11, 10-12, 11-8, 11-6 (85m)
Shaun le Roux (RSA) bt Marwan El Shorbagy (EGY) 11-6, 13-11, 11-5 (43m)
Mohd Ali Anwar Reda (EGY) bt Olivier Pett (ENG) 11-9, 7-11, 9-11, 11-7, 11-7 (73m)
Joe Lee (ENG) bt Eddie Charlton (ENG) 11-7, 11-3, 11-6 (34m)
Adrian Waller (ENG) bt Tim Garner (ENG) 11-6, 11-5, 11-7 (29m)