All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2026

Alberto Sepulveda Worm

Bib: 3638•M

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Top 11%
Gender (Male)
#0 / 16340
Top 18%
Masters (Masters Men)
#0 / 10617
Top 6%
Age Group (M40-44)
#0 / 2198
Top 16%
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
21:03
3.11 mi
Rank: #6603
Start → 5K
21:03 | 6:47/mi
10K
41:54
6.21 mi
Rank: #6321 (+282)
5K → 10K
20:51 | 6:43/mi
15K
1:01:54
9.32 mi
Rank: #5283 (+1038)
10K → 15K
20:00 | 6:27/mi
20K
1:21:49
12.43 mi
Rank: #4672 (+611)
15K → 20K
19:55 | 6:25/mi
HALF
1:26:10
13.11 mi
Rank: #4599 (+73)
20K → HALF
4:21 | 6:23/mi
25K
1:41:55
15.53 mi
Rank: #4376 (+223)
HALF → 25K
15:45 | 6:30/mi
30K
2:02:34
18.64 mi
Rank: #4155 (+221)
25K → 30K
20:39 | 6:39/mi
20M
2:11:42
20.00 mi
Rank: #4068 (+87)
30K → 20M
9:08 | 6:44/mi
21M
2:18:31
21.00 mi
Rank: #3921 (+147)
20M → 21M
6:49 | 6:49/mi
35K
2:23:22
21.75 mi
Rank: #3889 (+32)
21M → 35K
4:51 | 6:29/mi
23M
2:31:18
23.00 mi
Rank: #3680 (+209)
35K → 23M
7:56 | 6:21/mi
24M
2:37:33
24.00 mi
Rank: #3566 (+114)
23M → 24M
6:15 | 6:15/mi
40K
2:42:46
24.85 mi
Rank: #3405 (+161)
24M → 40K
5:13 | 6:07/mi
25.2M
2:44:59
25.20 mi
Rank: #3323 (+82)
40K → 25.2M
2:13 | 6:26/mi
FINISH
2:50:48
26.22 mi
Rank: #3159 (+164)
25.2M → FINISH
5:49 | 5:43/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:26:10
Pace6:35 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:24:38
Pace6:28 /mi
📊Negative Split: 1.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0221:036:4721:03
6:47
-
10K
6.21 mi10:43:5341:546:4520:51
6:43
-0:04
15K
9.32 mi11:03:531:01:546:3920:00
6:27
-0:16
20K
12.43 mi11:23:481:21:496:3619:55
6:25
-0:02
HALF
13.11 mi11:28:091:26:106:354:21
6:23
-0:02
25K
15.53 mi11:43:541:41:556:3415:45
6:30
+0:07
30K
18.64 mi12:04:332:02:346:3520:39
6:39
+0:09
20M
20.00 mi12:13:412:11:426:369:08
6:44
+0:05
21M
21.00 mi12:20:302:18:316:366:49
6:49
+0:05
35K
21.75 mi12:25:212:23:226:364:51
6:29
-0:20
23M
23.00 mi12:33:172:31:186:357:56
6:21
-0:08
24M
24.00 mi12:39:322:37:336:346:15
6:15
-0:06
40K
24.85 mi12:44:452:42:466:335:13
6:07
-0:08
25.2M
25.20 mi12:46:582:44:596:332:13
6:26
+0:19
FINISH
26.22 mi12:52:472:50:486:325:49
5:43
-0:43

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

5:43 /mi

Average Pace

6:31 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

17:17

10% of race

Time at Steady Pace

2:05:39

74% of race

Time at Slower Pace

27:52

16% of race

Average Pace: 6:31 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:23:0221:036:4721:03
6:47
#6603
10K
6.21 mi10:43:5341:546:4520:51
6:43
#6321
15K
9.32 mi11:03:531:01:546:3920:00
6:27
#5283
20K
12.43 mi11:23:481:21:496:3619:55
6:25
#4672
HALF
13.11 mi11:28:091:26:106:354:21
6:23
#4599
25K
15.53 mi11:43:541:41:556:3415:45
6:30
#4376
30K
18.64 mi12:04:332:02:346:3520:39
6:39
#4155
20M
20.00 mi12:13:412:11:426:369:08
6:44
#4068
21M
21.00 mi12:20:302:18:316:366:49
6:49
#3921
35K
21.75 mi12:25:212:23:226:364:51
6:29
#3889
23M
23.00 mi12:33:172:31:186:357:56
6:21
#3680
24M
24.00 mi12:39:322:37:336:346:15
6:15
#3566
40K
24.85 mi12:44:452:42:466:335:13
6:07
#3405
25.2M
25.20 mi12:46:582:44:596:332:13
6:26
#3323
FINISH
26.22 mi12:52:472:50:486:325:49
5:43
#3159
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6603592259223754(Top 13%)3582(Top 22%)3582(Top 163%)
10K6.21 mi3.10 mi6321+2825703+2195703+2196055(Top 21%)5502(Top 34%)5502(Top 250%)
15K9.32 mi3.11 mi5283+10384905+7984905+7983754(Top 13%)3582(Top 22%)3582(Top 163%)
20K12.43 mi3.11 mi4672+6114386+5194386+5193207(Top 11%)3079(Top 19%)3079(Top 140%)
HALF13.11 mi0.68 mi4599+734320+664320+663575(Top 12%)3416(Top 21%)3416(Top 155%)
25K15.53 mi2.42 mi4376+2234122+1984122+1983420(Top 12%)3252(Top 20%)3252(Top 148%)
30K18.64 mi3.11 mi4155+2213917+2053917+2053373(Top 12%)3175(Top 19%)3175(Top 144%)
20M20.00 mi1.36 mi4068+873836+813836+813600(Top 12%)3340(Top 20%)3340(Top 152%)
21M21.00 mi1.00 mi3921+1473701+1353701+1352547(Top 9%)2397(Top 15%)2397(Top 109%)
35K21.75 mi0.75 mi3889+323668+333668+333460(Top 12%)3189(Top 20%)3189(Top 145%)
23M23.00 mi1.25 mi3680+2093479+1893479+1891736(Top 6%)1657(Top 10%)1657(Top 75%)
24M24.00 mi1.00 mi3566+1143378+1013378+1011998(Top 7%)1885(Top 12%)1885(Top 86%)
40K24.85 mi0.85 mi3405+1613231+1473231+1471056(Top 4%)1006(Top 6%)1006(Top 46%)
25.2M25.20 mi0.35 mi3323+823157+743157+74775(Top 3%)746(Top 5%)746(Top 34%)
FINISH26.22 mi1.02 mi3159+1643001+1563001+156763(Top 3%)733(Top 4%)733(Top 33%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21
+97ft-345ft

Overall

3754

Males

3582

M40-44

3582

5K→10K

3.1 - 6.2 mi

Top 21%
×5
+79ft-138ft

Overall

6055

Males

5502

M40-44

5502

10K→15K

6.2 - 9.3 mi

Top 13%
×3
+67ft-78ft

Overall

3754

Males

3582

M40-44

3582

15K→20K

9.3 - 12.4 mi

Top 11%
×5
+106ft-86ft

Overall

3207

Males

3079

M40-44

3079

20K→HALF

12.4 - 13.1 mi

Top 12%
×2
+19ft-37ft

Overall

3575

Males

3416

M40-44

3416

HALF→25K

13.1 - 15.5 mi

Top 12%
×4
+66ft-88ft

Overall

3420

Males

3252

M40-44

3252

25K→30K

15.5 - 18.6 mi

Top 12%
×9
+181ft-148ft

Overall

3373

Males

3175

M40-44

3175

30K→20M

18.6 - 20.0 mi

Top 12%
×5
+64ft-50ft

Overall

3600

Males

3340

M40-44

3340

20M→21M

20.0 - 21.0 mi

Top 9%
×8
+106ft-24ft

Overall

2547

Males

2397

M40-44

2397

21M→35K

21.0 - 21.8 mi

Top 12%
×7
+17ft-86ft

Overall

3460

Males

3189

M40-44

3189

35K→23M

21.8 - 23.0 mi

Top 6%
×5
+23ft-63ft

Overall

1736

Males

1657

M40-44

1657

23M→24M

23.0 - 24.0 mi

Top 7%
×6
+12ft-82ft

Overall

1998

Males

1885

M40-44

1885

24M→40K

24.0 - 24.9 mi

Top 4%
×1
+6ft-20ft

Overall

1056

Males

1006

M40-44

1006

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1
+13ft-16ft

Overall

775

Males

746

M40-44

746

25.2M→FINISH

25.2 - 26.2 mi

Top 3%
×2
+22ft-21ft

Overall

763

Males

733

M40-44

733

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3588*
Passed By
144
Net Change
+3444
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6603
5K → 10K355*73+282#6603#6321
10K → 15K1040*2+1038#6321#5283
15K → 20K611*0+611#5283#4672
20K → HALF752+73#4672#4599
HALF → 25K225*2+223#4599#4376
25K → 30K239*18+221#4376#4155
30K → 20M10417+87#4155#4068
20M → 21M1503+147#4068#3921
21M → 35K5119+32#3921#3889
35K → 23M211*2+209#3889#3680
23M → 24M1195+114#3680#3566
24M → 40K1621+161#3566#3405
40K → 25.2M820+82#3405#3323
25.2M → FINISH1640+164#3323#3159
TOTALS3588*144+3444

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing