paired shift and wave starts
send off paired defenders or attacking waves together with a single tap. launch the next pair off the edge while the previous pair is still fighting underwater.
diving well timing for uwr squads
stopwatch and shift timing for underwater rugby.
built for 3.5m–5m diving pools, chlorine-heavy basements, and full-contact wrestling on the bottom. track 15s apnea intervals, paired bench rotations, and fin sprints on a tablet that never drops a beat when cell signal dies.
3.5m–5m
native diving pool depth
1-tap
paired wave & shift starts
100% offline
basement pool resilient
built for the bottom of the pool
designed around real uwr training friction
standard swim stopwatches do not understand 3.5m diving depths, 15-second sub-surface breath holds, or 2-player bench rotations. seshtimer does.
3.5m to 5.0m diving well depths
store your club’s diving pools with exact length and bottom depth (for example 20m length with 4.5m depth). reports and export sheets record the exact pool specs.
wet-finger proof touch targets
touch targets are 56px–68px wide with accidental tap protection. dripping hands, splashed water, and mist will not trigger false splits.
100% offline in basement pools
most deep diving wells are located in underground concrete halls with zero cell reception. seshtimer queues all split data locally and syncs when reconnected.
apnea intervals and basket holds
time 15s bottom holds on the rim against surface recovery. compare how your goalies and defenders hold pace in the 4th quarter under heavy lactic acid.
public athlete portal & excel export
share a read-only live stats link with your players after practice or export clean excel sheets for seasonal performance and attendance logs.
depth tracking
why pool depth matters for interval tracking
a 20-meter sprint in a 1.8-meter lane pool is completely different from a 20-meter sprint in a 4.5-meter diving well where the swimmer must equalize, dive vertically to the basket, and surface before recovery. seshtimer treats pool depth as a first-class metric.
wall-to-basket descent geometry
tracks exact pool length and bottom depth together (e.g. 20m × 4.5m) so your squad’s split times reflect real vertical descent demands.
bulkhead & diving well customization
supports any custom dimensions, whether you train in an Olympic 50m complex with a movable bulkhead or a historic 16.7m municipal diving tower.
seamless metric and yard conversions
automatically converts meters and yards (1 yd = 0.9144 m) if your team visits international tournaments or uses foreign diving facilities.
interactive uwr tool
underwater shift and rotation calculator
estimate work-to-rest ratios, bottom time, and descent volume for your squad’s scrimmage sets.
pool bottom depth
4.0 m
active bottom shift time
15 s
surface rest time
15 s
pairs per position on bench
2 pairs
work-to-rest ratio
1 : 1.00
underwater apnea per 15-min game
7m 30s (30 shifts)
vertical descent per player (10 shifts)
80 m (4.0m × 20)
recommended wave gap
15 s wave interval
app walk-through
see how seshtimer looks on deck
coach questions
frequently asked questions by uwr coaches
you can organize your squad into pairs (for example Wechselpaar Blau 1, Wechselpaar Blau 2, or position groups like Korbverteidiger). using wave start mode, one tap sends off the next pair across all stations simultaneously with an exact timestamp.
yes, completely. seshtimer is built offline-first. the entire timing engine, active workout state, and every split are saved in your tablet’s local database. when you walk back to the lobby or coach’s room, it syncs automatically to your cloud account.
yes. under the pool library, you can specify both the horizontal length (e.g. 20m) and the vertical depth (e.g. 4.5m). workouts display this as "20 m (4.5 m depth)" so interval benchmarks stay comparable between shallow and deep facilities.
accidental taps on swimmer names, card backgrounds, or white space do nothing. only the large, dedicated SPLIT and FINISH buttons record times. in addition, each player card has an independent Undo button that reverts only that player’s last split without pausing anyone else.
yes. under settings, you can share team access with your assistant coaches’ email addresses. they can sign in on their own tablets to time different stations, run warm-up sets, or view shared rosters.