Head to head
Kevin Costello III vs Samantha Raskind
Two careers, 295 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.
Kevin Costello III (United States) and Samantha Raskind (United States) have met in 295 rounds across 31 competitions since 2013. Counting every round where both finished with a result, Kevin Costello III leads Samantha Raskind: 266 finishes in front to 29.
On personal bests the split is just as plain: across 12 shared events, Kevin Costello III holds the faster single in 10, Samantha Raskind in 2.
Personal bests, side by side
faster single in bold| Event | Kevin Costello III single | average | Samantha Raskind single | average |
|---|---|---|---|---|
| 3×3 | 5.74 | 7.30 | 7.40 | 9.37 |
| 2×2 | 1.30 | 2.58 | 1.19 | 2.98 |
| 4×4 | 24.59 | 27.53 | 29.85 | 33.92 |
| 5×5 | 49.84 | 57.17 | 53.89 | 1:01.78 |
| 6×6 | 1:49.10 | 1:52.52 | 1:51.00 | 2:01.29 |
| 7×7 | 2:47.64 | 2:54.94 | 2:45.89 | 2:57.91 |
| 3×3 Fewest Moves | 32 moves | 36.33 | 60 moves | — |
| 3×3 one-handed | 10.66 | 13.45 | 16.53 | 19.73 |
| Megaminx | 49.58 | 58.56 | 1:14.73 | 1:25.32 |
| Pyraminx | 3.36 | 5.71 | 5.32 | 7.07 |
| Skewb | 4.19 | 5.78 | 5.18 | 6.82 |
| Square-1 | 24.91 | 31.55 | 53.25 | 57.56 |
Year by year
every meeting, 295 rounds in allRecent meetings
newest first · averages where the round ranked on one, singles otherwise| Year | Competition | Event | Round | Kevin Costello III | Samantha Raskind | ahead |
|---|---|---|---|---|---|---|
| 2025 | Rubik's WCA World Championship 2025 | 2×2 | First round | 4.75 | 4.55 | Samantha Raskind |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 | First round | 9.57 | 11.10 | Kevin Costello III |
| 2025 | Rubik's WCA World Championship 2025 | 3×3 one-handed | First round | 17.50 | 27.75 | Kevin Costello III |
| 2025 | Rubik's WCA World Championship 2025 | 4×4 | First round | 28.75 | 36.58 | Kevin Costello III |
| 2025 | Rubik's WCA World Championship 2025 | 5×5 | First round | 58.81 | 1:05.63 | Kevin Costello III |
| 2025 | Rubik's WCA World Championship 2025 | 6×6 | First round | 1:52.52 | 2:07.27 | Kevin Costello III |
| 2025 | Rubik's WCA World Championship 2025 | 7×7 | First round | 2:54.94 | 3:00.77 | Kevin Costello III |
| 2025 | Rubik's WCA World Championship 2025 | Megaminx | First round | 1:03.46 | 1:23.53 | Kevin Costello III |
| 2023 | CubingUSA Nationals 2023 | 2×2 | First round | 5.56 | 4.96 | Samantha Raskind |
| 2023 | CubingUSA Nationals 2023 | 3×3 | Second round | 8.02 | 10.17 | Kevin Costello III |
| 2023 | CubingUSA Nationals 2023 | 3×3 | First round | 7.35 | 10.71 | Kevin Costello III |
| 2023 | CubingUSA Nationals 2023 | 4×4 | First round | 31.21 | 36.47 | Kevin Costello III |
| 2023 | CubingUSA Nationals 2023 | 5×5 | First round | 58.63 | 1:09.50 | Kevin Costello III |
| 2023 | CubingUSA Nationals 2023 | 6×6 | First round | 1:57.72 | 2:01.29 | Kevin Costello III |
Full careers: Kevin Costello III · Samantha Raskind. 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.