Head to head
Liam Chen vs Christopher Sun
Two careers, 77 shared rounds, one running count. Everything below comes from the official results the two of them posted in the same rounds of the same competitions.
Liam Chen (United States) and Christopher Sun (United States) have met in 77 rounds across 11 competitions since 2017. Counting every round where both finished with a result, Christopher Sun leads Liam Chen: 47 finishes in front to 27 and 3 ties.
On personal bests the split is just as plain: across 13 shared events, Christopher Sun holds the faster single in 7, Liam Chen in 6.
Personal bests, side by side
faster single in bold| Event | Liam Chen single | average | Christopher Sun single | average |
|---|---|---|---|---|
| 3×3 | 6.18 | 7.28 | 4.14 | 5.69 |
| 2×2 | 1.14 | 2.82 | 0.80 | 1.72 |
| 4×4 | 32.45 | 36.85 | 20.51 | 24.01 |
| 5×5 | 1:17.47 | 1:25.54 | 40.19 | 44.61 |
| 3×3 blindfolded | 14.83 | 16.52 | 21.67 | 51.88 |
| 3×3 Fewest Moves | 26 moves | 35.33 | 34 moves | 38.00 |
| 3×3 one-handed | 9.79 | 14.20 | 11.06 | 13.06 |
| Pyraminx | 6.62 | 9.31 | 2.16 | 4.62 |
| Skewb | 4.61 | 7.90 | 3.46 | 4.30 |
| Square-1 | 17.13 | 31.02 | 7.75 | 11.88 |
| 4×4 blindfolded | 1:20.64 | 1:42.15 | 2:49.27 | 3:14.57 |
| 5×5 blindfolded | 6:13.43 | — | 6:22.89 | 9:17.36 |
| 3×3 Multi-Blind | 26 of 27 cubes · 59:05 | — | 22 of 25 cubes · 58:11 | — |
Year by year
every meeting, 77 rounds in allRecent meetings
newest first · averages where the round ranked on one, singles otherwise| Year | Competition | Event | Round | Liam Chen | Christopher Sun | ahead |
|---|---|---|---|---|---|---|
| 2026 | Rubik's WCA North American Championship 2026 | 3×3 | Second round | 10.09 | 6.49 | Christopher Sun |
| 2026 | Rubik's WCA North American Championship 2026 | 3×3 | First round | 8.07 | 6.37 | Christopher Sun |
| 2026 | Rubik's WCA North American Championship 2026 | 3×3 blindfolded | Second round | 16.95 | 28.54 | Liam Chen |
| 2026 | Rubik's WCA North American Championship 2026 | 3×3 blindfolded | First round | 18.63 | 51.88 | Liam Chen |
| 2026 | Rubik's WCA North American Championship 2026 | 3×3 Multi-Blind | Final | 22 of 28 cubes · 54:09 | 21 of 25 cubes · 57:29 | Christopher Sun |
| 2026 | Rubik's WCA North American Championship 2026 | 3×3 one-handed | First round | 15.12 | 15.93 | Liam Chen |
| 2026 | Rubik's WCA North American Championship 2026 | 4×4 | First round | 37.77 | 24.68 | Christopher Sun |
| 2026 | Rubik's WCA North American Championship 2026 | 4×4 blindfolded | Final | 1:26.83 | 3:01.53 | Liam Chen |
| 2026 | Rubik's WCA North American Championship 2026 | 5×5 blindfolded | Final | — | — | tie |
| 2026 | Rubik's WCA North American Championship 2026 | Skewb | First round | 7.90 | 6.42 | Christopher Sun |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 | Second round | 8.77 | 6.43 | Christopher Sun |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 | First round | 8.40 | 6.46 | Christopher Sun |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 Multi-Blind | Final | 26 of 27 cubes · 59:05 | 18 of 20 cubes · 48:04 | Liam Chen |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 one-handed | First round | 15.13 | 14.93 | Christopher Sun |
Full careers: Liam Chen · Christopher Sun. A meeting is a round of one event at one competition where both finished with a counted result. Who finished ahead follows official placing in the round: rounds played to an average are won on the average, best-of rounds on the single.