Head to head
Walker Welch vs Tomohiro Kobayashi (小林知広)
Two careers, 47 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.
Walker Welch (United States) and Tomohiro Kobayashi (小林知広) (Japan) have met in 47 rounds across 5 competitions since 2017. Counting every round where both finished with a result, Walker Welch leads Tomohiro Kobayashi (小林知広): 26 finishes in front to 21.
On personal bests the split is just as plain: across 17 shared events, Walker Welch holds the faster single in 11, Tomohiro Kobayashi (小林知広) in 5.
Personal bests, side by side
faster single in bold| Event | Walker Welch single | average | Tomohiro Kobayashi (小林知広) single | average |
|---|---|---|---|---|
| 3×3 | 6.80 | 8.66 | 7.45 | 8.64 |
| 2×2 | 0.66 | 1.82 | 1.41 | 2.33 |
| 4×4 | 29.61 | 33.54 | 25.61 | 30.94 |
| 5×5 | 55.06 | 1:02.22 | 47.27 | 52.61 |
| 6×6 | 1:37.22 | 1:43.40 | 1:26.26 | 1:31.38 |
| 7×7 | 2:23.87 | 2:34.43 | 2:11.01 | 2:16.05 |
| 3×3 blindfolded | 38.46 | 1:18.86 | 41.01 | 49.02 |
| 3×3 Fewest Moves | 19 moves | 21.00 | 19 moves | 23.00 |
| 3×3 one-handed | 12.05 | 15.35 | 12.59 | 16.18 |
| Clock | 4.35 | 6.14 | 6.46 | 8.27 |
| Megaminx | 50.08 | 59.04 | 42.57 | 46.67 |
| Pyraminx | 2.06 | 3.67 | 2.95 | 4.18 |
| Skewb | 1.38 | 3.88 | 2.89 | 4.80 |
| Square-1 | 7.88 | 13.83 | 13.25 | 18.35 |
| 4×4 blindfolded | 5:16.47 | 7:21.53 | 8:27.91 | — |
| 5×5 blindfolded | 14:41.00 | 19:09.00 | 31:02.00 | — |
| 3×3 Multi-Blind | 13 of 13 cubes · 57:02 | — | 10 of 13 cubes · 57:22 | — |
Year by year
every meeting, 47 rounds in allRecent meetings
newest first · averages where the round ranked on one, singles otherwise| Year | Competition | Event | Round | Walker Welch | Tomohiro Kobayashi (小林知広) | ahead |
|---|---|---|---|---|---|---|
| 2026 | FMC World 2026 | 3×3 Fewest Moves | Final | 21.00 | 23.00 | Walker Welch |
| 2025 | Rubik's WCA World Championship 2025 | 2×2 | First round | 2.65 | 3.98 | Walker Welch |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 | First round | 9.53 | 10.09 | Walker Welch |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 Fewest Moves | Final | 24.33 | 28 moves | Walker Welch |
| 2025 | Rubik's WCA World Championship 2025 | 4×4 | First round | 36.41 | 35.32 | Tomohiro Kobayashi (小林知広) |
| 2025 | Rubik's WCA World Championship 2025 | 5×5 | First round | 1:05.52 | 57.74 | Tomohiro Kobayashi (小林知広) |
| 2025 | Rubik's WCA World Championship 2025 | 6×6 | First round | 1:54.36 | 1:36.12 | Walker Welch |
| 2025 | Rubik's WCA World Championship 2025 | 7×7 | First round | 2:39.67 | 2:25.58 | Tomohiro Kobayashi (小林知広) |
| 2025 | Rubik's WCA World Championship 2025 | 7×7 | Second round | 2:49.18 | 2:33.19 | Tomohiro Kobayashi (小林知広) |
| 2025 | Rubik's WCA World Championship 2025 | Megaminx | First round | 1:01.51 | 54.05 | Tomohiro Kobayashi (小林知広) |
| 2023 | Rubik's WCA World Championship 2023 | 2×2 | Second round | 2.83 | 3.50 | Walker Welch |
| 2023 | Rubik's WCA World Championship 2023 | 2×2 | First round | 3.36 | 2.33 | Tomohiro Kobayashi (小林知広) |
| 2023 | Rubik's WCA World Championship 2023 | 3×3 | Second round | 10.74 | 10.24 | Tomohiro Kobayashi (小林知広) |
| 2023 | Rubik's WCA World Championship 2023 | 3×3 | First round | 10.00 | 9.87 | Tomohiro Kobayashi (小林知広) |
Full careers: Walker Welch · Tomohiro Kobayashi (小林知広). 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.