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BOSTON MARATHON 2026

Dongwook Lee

Bib: 1554β€’M

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 6%
Gender (Male)
#0 / 16340
Top 10%
Masters (Masters Men)
#0 / 10617
Top 2%
Age Group (M40-44)
#0 / 2198
Top 6%
Race Day Weather
51Β°/41Β°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
18:09
3.11 mi
Rank: #722
Start β†’ 5K
18:09 | 5:51/mi
10K
36:22
6.21 mi
Rank: #784 (-62)
5K β†’ 10K
18:13 | 5:52/mi
15K
54:52
9.32 mi
Rank: #878 (-94)
10K β†’ 15K
18:30 | 5:58/mi
20K
1:13:46
12.43 mi
Rank: #991 (-113)
15K β†’ 20K
18:54 | 6:05/mi
HALF
1:17:51
13.11 mi
Rank: #1006 (-15)
20K β†’ HALF
4:05 | 6:00/mi
25K
1:33:01
15.53 mi
Rank: #1162 (-156)
HALF β†’ 25K
15:10 | 6:16/mi
30K
1:53:13
18.64 mi
Rank: #1364 (-202)
25K β†’ 30K
20:12 | 6:31/mi
20M
2:02:12
20.00 mi
Rank: #1430 (-66)
30K β†’ 20M
8:59 | 6:37/mi
21M
2:09:11
21.00 mi
Rank: #1506 (-76)
20M β†’ 21M
6:59 | 6:59/mi
35K
2:13:58
21.75 mi
Rank: #1532 (-26)
21M β†’ 35K
4:47 | 6:24/mi
23M
2:22:14
23.00 mi
Rank: #1552 (-20)
35K β†’ 23M
8:16 | 6:37/mi
24M
2:28:39
24.00 mi
Rank: #1577 (-25)
23M β†’ 24M
6:25 | 6:25/mi
40K
2:34:16
24.85 mi
Rank: #1593 (-16)
24M β†’ 40K
5:37 | 6:35/mi
25.2M
2:36:42
25.20 mi
Rank: #1601 (-8)
40K β†’ 25.2M
2:26 | 7:04/mi
FINISH
2:43:12
26.22 mi
Rank: #1634 (-33)
25.2M β†’ FINISH
6:30 | 6:23/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:17:51
Pace5:57 /mi
2nd Half
Distance13.11 mi
Time1:25:21
Pace6:31 /mi
πŸ“ŠPositive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4018:095:5118:09
5:51
-
10K
6.21 mi10:40:5336:225:5218:13
5:52
+0:01
15K
9.32 mi10:59:2354:525:5418:30
5:58
+0:06
20K
12.43 mi11:18:171:13:465:5718:54
6:05
+0:07
HALF
13.11 mi11:22:221:17:515:574:05
6:00
-0:05
25K
15.53 mi11:37:321:33:016:0015:10
6:16
+0:16
30K
18.64 mi11:57:441:53:136:0520:12
6:31
+0:15
20M
20.00 mi12:06:432:02:126:078:59
6:37
+0:06
21M
21.00 mi12:13:422:09:116:106:59
6:59
+0:22
35K
21.75 mi12:18:292:13:586:104:47
6:24
-0:35
23M
23.00 mi12:26:452:22:146:128:16
6:37
+0:13
24M
24.00 mi12:33:102:28:396:126:25
6:25
-0:12
40K
24.85 mi12:38:472:34:166:135:37
6:35
+0:10
25.2M
25.20 mi12:41:132:36:426:142:26
7:04
+0:29
FINISH
26.22 mi12:47:432:43:126:146:30
6:23
-0:41

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

5:51 /mi

Average Pace

6:14 /mi

Slowest Pace

7:04 /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

1:17:51

48% of race

Time at Steady Pace

53:04

33% of race

Time at Slower Pace

32:17

20% of race

Average Pace: 6:13 /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 mi10:22:4018:095:5118:09
5:51
#722
10K
6.21 mi10:40:5336:225:5218:13
5:52
#784
15K
9.32 mi10:59:2354:525:5418:30
5:58
#878
20K
12.43 mi11:18:171:13:465:5718:54
6:05
#991
HALF
13.11 mi11:22:221:17:515:574:05
6:00
#1006
25K
15.53 mi11:37:321:33:016:0015:10
6:16
#1162
30K
18.64 mi11:57:441:53:136:0520:12
6:31
#1364
20M
20.00 mi12:06:432:02:126:078:59
6:37
#1430
21M
21.00 mi12:13:422:09:116:106:59
6:59
#1506
35K
21.75 mi12:18:292:13:586:104:47
6:24
#1532
23M
23.00 mi12:26:452:22:146:128:16
6:37
#1552
24M
24.00 mi12:33:102:28:396:126:25
6:25
#1577
40K
24.85 mi12:38:472:34:166:135:37
6:35
#1593
25.2M
25.20 mi12:41:132:36:426:142:26
7:04
#1601
FINISH
26.22 mi12:47:432:43:126:146:30
6:23
#1634
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 mi7226846841156(Top 4%)1111(Top 7%)1111(Top 51%)
10K6.21 mi3.10 mi784-62749-65749-65875(Top 3%)837(Top 5%)837(Top 38%)
15K9.32 mi3.11 mi878-94839-90839-901156(Top 4%)1111(Top 7%)1111(Top 51%)
20K12.43 mi3.11 mi991-113950-111950-1111523(Top 5%)1470(Top 9%)1470(Top 67%)
HALF13.11 mi0.68 mi1006-15965-15965-151433(Top 5%)1383(Top 8%)1383(Top 63%)
25K15.53 mi2.42 mi1162-1561117-1521117-1522078(Top 7%)1998(Top 12%)1998(Top 91%)
30K18.64 mi3.11 mi1364-2021312-1951312-1952561(Top 9%)2449(Top 15%)2449(Top 111%)
20M20.00 mi1.36 mi1430-661377-651377-652967(Top 10%)2788(Top 17%)2788(Top 127%)
21M21.00 mi1.00 mi1506-761451-741451-743316(Top 11%)3050(Top 19%)3050(Top 139%)
35K21.75 mi0.75 mi1532-261476-251476-252922(Top 10%)2720(Top 17%)2720(Top 124%)
23M23.00 mi1.25 mi1552-201496-201496-202904(Top 10%)2687(Top 16%)2687(Top 122%)
24M24.00 mi1.00 mi1577-251520-241520-242692(Top 9%)2476(Top 15%)2476(Top 113%)
40K24.85 mi0.85 mi1593-161535-151535-152851(Top 10%)2599(Top 16%)2599(Top 118%)
25.2M25.20 mi0.35 mi1601-81543-81543-82819(Top 10%)2539(Top 16%)2539(Top 116%)
FINISH26.22 mi1.02 mi1634-331570-271570-273414(Top 12%)3005(Top 18%)3005(Top 137%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
Γ—21
+97ft-345ft

Overall

1156

Males

1111

M40-44

1111

5K→10K

3.1 - 6.2 mi

Top 3%
Γ—5
+79ft-138ft

Overall

875

Males

837

M40-44

837

10K→15K

6.2 - 9.3 mi

Top 4%
Γ—3
+67ft-78ft

Overall

1156

Males

1111

M40-44

1111

15K→20K

9.3 - 12.4 mi

Top 5%
Γ—5
+106ft-86ft

Overall

1523

Males

1470

M40-44

1470

20K→HALF

12.4 - 13.1 mi

Top 5%
Γ—2
+19ft-37ft

Overall

1433

Males

1383

M40-44

1383

HALF→25K

13.1 - 15.5 mi

Top 7%
Γ—4
+66ft-88ft

Overall

2078

Males

1998

M40-44

1998

25K→30K

15.5 - 18.6 mi

Top 9%
Γ—9
+181ft-148ft

Overall

2561

Males

2449

M40-44

2449

30K→20M

18.6 - 20.0 mi

Top 10%
Γ—5
+64ft-50ft

Overall

2967

Males

2788

M40-44

2788

20M→21M

20.0 - 21.0 mi

Top 11%
Γ—8
+106ft-24ft

Overall

3316

Males

3050

M40-44

3050

21M→35K

21.0 - 21.8 mi

Top 10%
Γ—7
+17ft-86ft

Overall

2922

Males

2720

M40-44

2720

35K→23M

21.8 - 23.0 mi

Top 10%
Γ—5
+23ft-63ft

Overall

2904

Males

2687

M40-44

2687

23M→24M

23.0 - 24.0 mi

Top 9%
Γ—6
+12ft-82ft

Overall

2692

Males

2476

M40-44

2476

24M→40K

24.0 - 24.9 mi

Top 10%
Γ—1
+6ft-20ft

Overall

2851

Males

2599

M40-44

2599

40K→25.2M

24.9 - 25.2 mi

Top 10%
Γ—1
+13ft-16ft

Overall

2819

Males

2539

M40-44

2539

25.2M→FINISH

25.2 - 26.2 mi

Top 12%
Γ—2
+22ft-21ft

Overall

3414

Males

3005

M40-44

3005

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
170
Passed By
1082
Net Change
-912
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#722
5K β†’ 10K2183-62#722#784
10K β†’ 15K7101-94#784#878
15K β†’ 20K4117-113#878#991
20K β†’ HALF217-15#991#1006
HALF β†’ 25K9165-156#1006#1162
25K β†’ 30K18220-202#1162#1364
30K β†’ 20M975-66#1364#1430
20M β†’ 21M581-76#1430#1506
21M β†’ 35K733-26#1506#1532
35K β†’ 23M2545-20#1532#1552
23M β†’ 24M1944-25#1552#1577
24M β†’ 40K1632-16#1577#1593
40K β†’ 25.2M816-8#1593#1601
25.2M β†’ FINISH2053-33#1601#1634
TOTALS1701082-912
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