Ilia Simakin
2021
| J3 SOBOTA | [1] | Quarter |
| J3 POZNAN | [2] | Quarter |
| J2 TASHKENT | [7] | Semi |
| J3 TASHKENT | [4] | Semi |
| J2 RYAZAN | [7] | Quarter |
| J1 KAZAN | 1R | |
| J3 ALMETIEVSK | [4] | 1R |
| J4 KARAGANDA-2 | [1] | Quarter |
| J4 KARAGANDA | [1] | Quarter |
| J5 BALASHIHA | [3] | Win |
Nation
RUS
World Ranking
ATP Ranking　236th
Year-end Junior World Ranking
- Year-end 2021 59th
- Year-end 2020 277th
- Year-end 2019 1048th
Match Details
2021 J3 SOBOTA
| W | 1R | Antoni Pankowski | 6-2 6-1 |
| W | 2R | Wiktor Kosowski | 6-3 6-3 |
| L | QF | Francisco Tomas Geschwind | 5-7 6-7 |
2021 J3 POZNAN
| W | 1R | Blazej Sopolinski | 7-5 4-6 7-6 |
| W | 2R | Sandro Szic | 6-4 6-4 |
| L | QF | Dylan Dietrich | 1-6 1-6 |
2021 J2 TASHKENT
| W | 1R | Aziz Madatov | 6-2 6-2 |
| W | 2R | Yannik Rahman | 6-4 6-3 |
| W | QF | Samer Al Tori | 4-6 6-3 6-4 |
| L | SF | Erik Arutiunian | 1-6 3-6 |
2021 J3 TASHKENT
| W | 1R | Boburmirzo Ekubjanov | 6-0 6-3 |
| W | 2R | Arslanbek Aitkulov | 6-0 7-5 |
| W | QF | Leanid Boika | 6-3 6-3 |
| L | SF | Woobin Shin | 4-6 5-7 |
2021 J2 RYAZAN
| W | 1R | Dmitry Bessonov | 6-2 6-2 |
| W | 2R | Luka Jovanovic | 6-4 6-4 |
| L | QF | Daniil Ostapenkov | 6-7 4-6 |
2021 J1 KAZAN
| L | 1R | Leo Borg | 1-6 2-6 |
2021 J3 ALMETIEVSK
| L | 1R | Taras Ignatiuk | 6-3 5-7 4-6 |
2021 J4 KARAGANDA-2
| W | 1R | Roman Konovalov | 6-3 6-4 |
| W | 2R | Yaroslav Demin | 6-4 6-3 |
| L | QF | Maxim Shin | 2-6 0-6 |
2021 J4 KARAGANDA
| W | 1R | Max Batyutenko | 6-3 6-4 |
| W | 2R | Illya Maksymchuk | 6-3 5-7 6-4 |
| L | QF | Yaroslav Demin | 6-7 6-4 3-6 |
2021 J5 BALASHIHA
| W | 1R | Danil Panarin | 6-4 7-5 |
| W | 2R | Victor Kuznetsov | 6-1 6-4 |
| W | QF | Grigory Shebekin | 6-2 6-4 |
| W | SF | Egor Khotchenkov | 7-5 7-6 |
| W | F | Yaroslav Demin | 6-3 6-4 |
Junior Tennis Database is a site that summarizes the results of ITF junior tennis tournaments.
Number of registered tournaments: 9532, Number of registered players: 5,933, Number of registered results: 315,242