| Feb 13, 2026 | Tin | 1–0 | Lee | 77th Singapore National Chess Championships 2026 | English Defense | |
| Feb 2, 2026 | Lee | 0–1 | Wong | 77th Singapore National Chess Championships 2026 | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Jul 26, 2025 | Lee | 0–1 | Wang | Round 6: Lee, Jing Xi Jonathan - Wang, Xiaozhi | Caro-Kann Defense: Advance Variation | |
| Jul 22, 2025 | Cu | 1–0 | Lee | Round 2: Cu, Ivan Travis - Lee, Jing Xi Jonathan | King's Indian Attack | |
| Feb 12, 2023 | Sreekarthika | * | Lee | Round 9: Velmurugan Sreekarthika - Jing Xi Jonathan Lee | French Defense: Schlechter Variation | |
| Feb 11, 2023 | Lee | 1–0 | Cheong | Round 8: Jing Xi Jonathan Lee - Sue Lyn Cheong | Four Knights Game: Scotch Variation Accepted | |
| Feb 10, 2023 | Gao | 0–1 | Lee | Round 7: Zhenxi Jerry Gao - Jing Xi Jonathan Lee | English Opening | |
| Feb 5, 2023 | Lee | 0–1 | Burman | Round 6: Jing Xi Jonathan Lee - Ray Pritish Burman | King's Indian Attack: Double Fianchetto | |
| Feb 4, 2023 | Saravanan | 1–0 | Lee | Round 5: Durga Saravanan - Jing Xi Jonathan Lee | Queen's Gambit Declined: Janowski Variation | |
| Feb 3, 2023 | Lee | 1–0 | Rice | Round 4: Jing Xi Jonathan Lee - Leah Rice | Caro-Kann Defense: Two Knights Attack | |
| Jan 29, 2023 | Ong | 1–0 | Lee | Round 3: Yi Herng Joel Ong - Jing Xi Jonathan Lee | Horwitz Defense | |
| Jan 28, 2023 | Lee | 1–0 | Vijay | Round 2: Jing Xi Jonathan Lee - Rege Vijay | Caro-Kann Defense: Panov Attack, Fianchetto Defense | |
| Aug 11, 2021 | Lee | 0–1 | Stribuk | World Youth Cup 2021 O14-G14 - Open 14 | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Aug 11, 2021 | Lee | 1–0 | Laksiri | World Youth Cup 2021 O14-G14 - Open 14 | Four Knights Game: Scotch Variation Accepted | |
| Aug 11, 2021 | Lee | 1–0 | Thakkar | World Youth Cup 2021 O14-G14 - Open 14 | Sicilian Defense: Alapin Variation | |
| Aug 11, 2021 | Lee | ½–½ | Kennedy | World Youth Cup 2021 O14-G14 - Open 14 | Three Knights Opening | |
| Aug 11, 2021 | Shah | 0–1 | Lee | World Youth Cup 2021 O14-G14 - Open 14 | Sicilian Defense: Closed, Fianchetto Variation | |
| Aug 11, 2021 | Garcia Figueroa | 0–1 | Lee | World Youth Cup 2021 O14-G14 - Open 14 | Bogo-Indian Defense: Nimzowitsch Variation | |
| Aug 11, 2021 | Wangthumboon | 1–0 | Lee | World Youth Cup 2021 O14-G14 - Open 14 | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Aug 11, 2021 | Weerasekara | 1–0 | Lee | World Youth Cup 2021 O14-G14 - Open 14 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Aug 11, 2021 | Batsaikhan | 1–0 | Lee | World Youth Cup 2021 O14-G14 - Open 14 | Caro-Kann Defense: Advance Variation | |
