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BOSTON MARATHON 2026

Sangwan Sim

Bib: 32409β€’M

MA

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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Age Group (M18-39)
#0 / 5723
Race Day Weather
51Β°/41Β°F
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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
25:06
3.11 mi
Rank: #17472
Start β†’ 5K
25:06 | 8:05/mi
10K
49:05
6.21 mi
Rank: #16295 (+1177)
5K β†’ 10K
23:59 | 7:44/mi
15K
1:13:52
9.32 mi
Rank: #16480 (-185)
10K β†’ 15K
24:47 | 7:59/mi
20K
1:39:50
12.43 mi
Rank: #17048 (-568)
15K β†’ 20K
25:58 | 8:22/mi
HALF
1:45:26
13.11 mi
Rank: #17135 (-87)
20K β†’ HALF
5:36 | 8:13/mi
25K
2:10:04
15.53 mi
Rank: #18990 (-1855)
HALF β†’ 25K
24:38 | 10:10/mi
30K
2:40:40
18.64 mi
Rank: #19875 (-885)
25K β†’ 30K
30:36 | 9:51/mi
20M
2:54:45
20.00 mi
Rank: #20306 (-431)
30K β†’ 20M
14:05 | 10:23/mi
21M
3:06:18
21.00 mi
Rank: #20677 (-371)
20M β†’ 21M
11:33 | 11:33/mi
35K
3:13:57
21.75 mi
Rank: #20828 (-151)
21M β†’ 35K
7:39 | 10:14/mi
23M
3:26:04
23.00 mi
Rank: #20898 (-70)
35K β†’ 23M
12:07 | 9:41/mi
24M
3:35:33
24.00 mi
Rank: #20928 (-30)
23M β†’ 24M
9:29 | 9:29/mi
40K
3:43:48
24.85 mi
Rank: #20941 (-13)
24M β†’ 40K
8:15 | 9:39/mi
25.2M
3:47:25
25.20 mi
Rank: #20954 (-13)
40K β†’ 25.2M
3:37 | 10:30/mi
FINISH
3:56:56
26.22 mi
Rank: #21007 (-53)
25.2M β†’ FINISH
9:31 | 9:21/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:45:26
Pace8:03 /mi
2nd Half
Distance13.11 mi
Time2:11:30
Pace10:02 /mi
πŸ“ŠPositive Split: 24.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:4425:068:0525:06
8:05
-
10K
6.21 mi12:17:4349:057:5423:59
7:44
-0:21
15K
9.32 mi12:42:301:13:527:5624:47
7:59
+0:15
20K
12.43 mi13:08:281:39:508:0225:58
8:22
+0:23
HALF
13.11 mi13:14:041:45:268:035:36
8:13
-0:09
25K
15.53 mi13:38:422:10:048:2324:38
10:10
+1:57
30K
18.64 mi14:09:182:40:408:3830:36
9:51
-0:19
20M
20.00 mi14:23:232:54:458:4514:05
10:23
+0:32
21M
21.00 mi14:34:563:06:188:5311:33
11:33
+1:10
35K
21.75 mi14:42:353:13:578:567:39
10:14
-1:19
23M
23.00 mi14:54:423:26:048:5812:07
9:41
-0:33
24M
24.00 mi15:04:113:35:338:599:29
9:29
-0:12
40K
24.85 mi15:12:263:43:489:018:15
9:39
+0:10
25.2M
25.20 mi15:16:033:47:259:023:37
10:30
+0:51
FINISH
26.22 mi15:25:343:56:569:039:31
9:21
-1:09

Checkpoint Splits Visualizations

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

πŸ“ˆPace 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

7:44 /mi

Average Pace

9:03 /mi

Slowest Pace

11:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

1:45:26

44% of race

Time at Steady Pace

1:34:36

40% of race

Time at Slower Pace

36:54

16% of race

Average Pace: 9:02 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi11:53:4425:068:0525:06
8:05
#17472
10K
6.21 mi12:17:4349:057:5423:59
7:44
#16295
15K
9.32 mi12:42:301:13:527:5624:47
7:59
#16480
20K
12.43 mi13:08:281:39:508:0225:58
8:22
#17048
HALF
13.11 mi13:14:041:45:268:035:36
8:13
#17135
25K
15.53 mi13:38:422:10:048:2324:38
10:10
#18990
30K
18.64 mi14:09:182:40:408:3830:36
9:51
#19875
20M
20.00 mi14:23:232:54:458:4514:05
10:23
#20306
21M
21.00 mi14:34:563:06:188:5311:33
11:33
#20677
35K
21.75 mi14:42:353:13:578:567:39
10:14
#20828
23M
23.00 mi14:54:423:26:048:5812:07
9:41
#20898
24M
24.00 mi15:04:113:35:338:599:29
9:29
#20928
40K
24.85 mi15:12:263:43:489:018:15
9:39
#20941
25.2M
25.20 mi15:16:033:47:259:023:37
10:30
#20954
FINISH
26.22 mi15:25:343:56:569:039:31
9:21
#21007
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi17472112101121016835(Top 58%)10963(Top 67%)10963(Top 192%)
10K6.21 mi3.10 mi16295+117710719+49110719+49114924(Top 51%)10211(Top 62%)10211(Top 178%)
15K9.32 mi3.11 mi16480-18510790-7110790-7116835(Top 58%)10963(Top 67%)10963(Top 192%)
20K12.43 mi3.11 mi17048-56811018-22811018-22818453(Top 64%)11607(Top 71%)11607(Top 203%)
HALF13.11 mi0.68 mi17135-8711056-3811056-3818480(Top 64%)11666(Top 71%)11666(Top 204%)
25K15.53 mi2.42 mi18990-185511841-78511841-78524660(Top 85%)14507(Top 89%)14507(Top 253%)
30K18.64 mi3.11 mi19875-88512205-36412205-36422712(Top 78%)13490(Top 83%)13490(Top 236%)
20M20.00 mi1.36 mi20306-43112391-18612391-18623517(Top 81%)13772(Top 84%)13772(Top 241%)
21M21.00 mi1.00 mi20677-37112565-17412565-17424263(Top 84%)14038(Top 86%)14038(Top 245%)
35K21.75 mi0.75 mi20828-15112626-6112626-6123690(Top 82%)13778(Top 84%)13778(Top 241%)
23M23.00 mi1.25 mi20898-7012650-2412650-2421191(Top 73%)12538(Top 77%)12538(Top 219%)
24M24.00 mi1.00 mi20928-3012657-712657-721274(Top 73%)12517(Top 77%)12517(Top 219%)
40K24.85 mi0.85 mi20941-1312650+712650+720882(Top 72%)12290(Top 75%)12290(Top 215%)
25.2M25.20 mi0.35 mi20954-1312654-412654-420981(Top 72%)12345(Top 76%)12345(Top 216%)
FINISH26.22 mi1.02 mi21007-5312667-1312667-1321780(Top 75%)12743(Top 78%)12743(Top 223%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
Γ—21
+97ft-345ft

Overall

16835

Males

10963

M18-39

10963

5K→10K

3.1 - 6.2 mi

Top 51%
Γ—5
+79ft-138ft

Overall

14924

Males

10211

M18-39

10211

10K→15K

6.2 - 9.3 mi

Top 58%
Γ—3
+67ft-78ft

Overall

16835

Males

10963

M18-39

10963

15K→20K

9.3 - 12.4 mi

Top 64%
Γ—5
+106ft-86ft

Overall

18453

Males

11607

M18-39

11607

20K→HALF

12.4 - 13.1 mi

Top 64%
Γ—2
+19ft-37ft

Overall

18480

Males

11666

M18-39

11666

HALF→25K

13.1 - 15.5 mi

Top 85%
Γ—4
+66ft-88ft

Overall

24660

Males

14507

M18-39

14507

25K→30K

15.5 - 18.6 mi

Top 78%
Γ—9
+181ft-148ft

Overall

22712

Males

13490

M18-39

13490

30K→20M

18.6 - 20.0 mi

Top 81%
Γ—5
+64ft-50ft

Overall

23517

Males

13772

M18-39

13772

20M→21M

20.0 - 21.0 mi

Top 84%
Γ—8
+106ft-24ft

Overall

24263

Males

14038

M18-39

14038

21M→35K

21.0 - 21.8 mi

Top 82%
Γ—7
+17ft-86ft

Overall

23690

Males

13778

M18-39

13778

35K→23M

21.8 - 23.0 mi

Top 73%
Γ—5
+23ft-63ft

Overall

21191

Males

12538

M18-39

12538

23M→24M

23.0 - 24.0 mi

Top 73%
Γ—6
+12ft-82ft

Overall

21274

Males

12517

M18-39

12517

24M→40K

24.0 - 24.9 mi

Top 72%
Γ—1
+6ft-20ft

Overall

20882

Males

12290

M18-39

12290

40K→25.2M

24.9 - 25.2 mi

Top 72%
Γ—1
+13ft-16ft

Overall

20981

Males

12345

M18-39

12345

25.2M→FINISH

25.2 - 26.2 mi

Top 75%
Γ—2
+22ft-21ft

Overall

21780

Males

12743

M18-39

12743

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1745*
Passed By
1895
Net Change
-3535
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#17472
5K β†’ 10K1207*30+1177#17472#16295
10K β†’ 15K136200-185#16295#16480
15K β†’ 20K64200-568#16480#17048
20K β†’ HALF18105-87#17048#17135
HALF β†’ 25K3200-1855#17135#18990
25K β†’ 30K48200-885#18990#19875
30K β†’ 20M24200-431#19875#20306
20M β†’ 21M15200-371#20306#20677
21M β†’ 35K19170-151#20677#20828
35K β†’ 23M54124-70#20828#20898
23M β†’ 24M4676-30#20898#20928
24M β†’ 40K5265-13#20928#20941
40K β†’ 25.2M2336-13#20941#20954
25.2M β†’ FINISH3689-53#20954#21007
TOTALS1745*1895-3535

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

πŸ“Š

Passing Analysis Visualizations

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

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing