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BOSTON MARATHON 2026

Seung Yun Lee

Bib: 22117•M

CA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M60-64)
#0 / 1514
Top 31%
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
26:07
3.11 mi
Rank: #19524
Start → 5K
26:07 | 8:25/mi
10K
51:33
6.21 mi
Rank: #18987 (+537)
5K → 10K
25:26 | 8:12/mi
15K
1:17:07
9.32 mi
Rank: #18846 (+141)
10K → 15K
25:34 | 8:14/mi
20K
1:42:23
12.43 mi
Rank: #18395 (+451)
15K → 20K
25:16 | 8:08/mi
HALF
1:47:57
13.11 mi
Rank: #18377 (+18)
20K → HALF
5:34 | 8:10/mi
25K
2:07:51
15.53 mi
Rank: #18127 (+250)
HALF → 25K
19:54 | 8:13/mi
30K
2:33:50
18.64 mi
Rank: #17724 (+403)
25K → 30K
25:59 | 8:22/mi
20M
2:45:09
20.00 mi
Rank: #17515 (+209)
30K → 20M
11:19 | 8:20/mi
21M
2:53:42
21.00 mi
Rank: #17272 (+243)
20M → 21M
8:33 | 8:33/mi
35K
2:59:50
21.75 mi
Rank: #17207 (+65)
21M → 35K
6:08 | 8:12/mi
23M
3:10:19
23.00 mi
Rank: #17035 (+172)
35K → 23M
10:29 | 8:23/mi
24M
3:18:39
24.00 mi
Rank: #16965 (+70)
23M → 24M
8:20 | 8:20/mi
40K
3:25:54
24.85 mi
Rank: #16915 (+50)
24M → 40K
7:15 | 8:29/mi
25.2M
3:29:03
25.20 mi
Rank: #16878 (+37)
40K → 25.2M
3:09 | 9:09/mi
FINISH
3:37:29
26.22 mi
Rank: #16861 (+17)
25.2M → FINISH
8:26 | 8:17/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:47:57
Pace8:15 /mi
2nd Half
Distance13.11 mi
Time1:49:32
Pace8:22 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:3926:078:2526:07
8:25
-
10K
6.21 mi11:53:0551:338:1825:26
8:12
-0:13
15K
9.32 mi12:18:391:17:078:1725:34
8:14
+0:02
20K
12.43 mi12:43:551:42:238:1525:16
8:08
-0:06
HALF
13.11 mi12:49:291:47:578:155:34
8:10
+0:02
25K
15.53 mi13:09:232:07:518:1419:54
8:13
+0:03
30K
18.64 mi13:35:222:33:508:1625:59
8:22
+0:09
20M
20.00 mi13:46:412:45:098:1611:19
8:20
-0:02
21M
21.00 mi13:55:142:53:428:178:33
8:33
+0:13
35K
21.75 mi14:01:222:59:508:176:08
8:12
-0:21
23M
23.00 mi14:11:513:10:198:1710:29
8:23
+0:11
24M
24.00 mi14:20:113:18:398:178:20
8:20
-0:03
40K
24.85 mi14:27:263:25:548:187:15
8:29
+0:09
25.2M
25.20 mi14:30:353:29:038:183:09
9:09
+0:40
FINISH
26.22 mi14:39:013:37:298:198:26
8:17
-0:52

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

8:08 /mi

Average Pace

8:18 /mi

Slowest Pace

9:09 /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

3:34:20

99% of race

Time at Steady Pace

3:09

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:18 /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 mi11:27:3926:078:2526:07
8:25
#19524
10K
6.21 mi11:53:0551:338:1825:26
8:12
#18987
15K
9.32 mi12:18:391:17:078:1725:34
8:14
#18846
20K
12.43 mi12:43:551:42:238:1525:16
8:08
#18395
HALF
13.11 mi12:49:291:47:578:155:34
8:10
#18377
25K
15.53 mi13:09:232:07:518:1419:54
8:13
#18127
30K
18.64 mi13:35:222:33:508:1625:59
8:22
#17724
20M
20.00 mi13:46:412:45:098:1611:19
8:20
#17515
21M
21.00 mi13:55:142:53:428:178:33
8:33
#17272
35K
21.75 mi14:01:222:59:508:176:08
8:12
#17207
23M
23.00 mi14:11:513:10:198:1710:29
8:23
#17035
24M
24.00 mi14:20:113:18:398:178:20
8:20
#16965
40K
24.85 mi14:27:263:25:548:187:15
8:29
#16915
25.2M
25.20 mi14:30:353:29:038:183:09
9:09
#16878
FINISH
26.22 mi14:39:013:37:298:198:26
8:17
#16861
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi19524120611206118522(Top 64%)11664(Top 71%)11664(Top 770%)
10K6.21 mi3.10 mi18987+53711846+21511846+21518483(Top 64%)11667(Top 71%)11667(Top 771%)
15K9.32 mi3.11 mi18846+14111804+4211804+4218522(Top 64%)11664(Top 71%)11664(Top 770%)
20K12.43 mi3.11 mi18395+45111611+19311611+19317070(Top 59%)11027(Top 67%)11027(Top 728%)
HALF13.11 mi0.68 mi18377+1811602+911602+918160(Top 63%)11506(Top 70%)11506(Top 760%)
25K15.53 mi2.42 mi18127+25011480+12211480+12216822(Top 58%)10864(Top 66%)10864(Top 718%)
30K18.64 mi3.11 mi17724+40311275+20511275+20516029(Top 55%)10439(Top 64%)10439(Top 689%)
20M20.00 mi1.36 mi17515+20911171+10411171+10415114(Top 52%)9943(Top 61%)9943(Top 657%)
21M21.00 mi1.00 mi17272+24311050+12111050+12113437(Top 46%)9120(Top 56%)9120(Top 602%)
35K21.75 mi0.75 mi17207+6511007+4311007+4315769(Top 54%)10094(Top 62%)10094(Top 667%)
23M23.00 mi1.25 mi17035+17210904+10310904+10314939(Top 51%)9660(Top 59%)9660(Top 638%)
24M24.00 mi1.00 mi16965+7010852+5210852+5215899(Top 55%)10002(Top 61%)10002(Top 661%)
40K24.85 mi0.85 mi16915+5010814+3810814+3815526(Top 53%)9774(Top 60%)9774(Top 646%)
25.2M25.20 mi0.35 mi16878+3710787+2710787+2715411(Top 53%)9707(Top 59%)9707(Top 641%)
FINISH26.22 mi1.02 mi16861+1710756+3110756+3116851(Top 58%)10367(Top 63%)10367(Top 685%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21
+97ft-345ft

Overall

18522

Males

11664

M60-64

11664

5K→10K

3.1 - 6.2 mi

Top 64%
×5
+79ft-138ft

Overall

18483

Males

11667

M60-64

11667

10K→15K

6.2 - 9.3 mi

Top 64%
×3
+67ft-78ft

Overall

18522

Males

11664

M60-64

11664

15K→20K

9.3 - 12.4 mi

Top 59%
×5
+106ft-86ft

Overall

17070

Males

11027

M60-64

11027

20K→HALF

12.4 - 13.1 mi

Top 63%
×2
+19ft-37ft

Overall

18160

Males

11506

M60-64

11506

HALF→25K

13.1 - 15.5 mi

Top 58%
×4
+66ft-88ft

Overall

16822

Males

10864

M60-64

10864

25K→30K

15.5 - 18.6 mi

Top 55%
×9
+181ft-148ft

Overall

16029

Males

10439

M60-64

10439

30K→20M

18.6 - 20.0 mi

Top 52%
×5
+64ft-50ft

Overall

15114

Males

9943

M60-64

9943

20M→21M

20.0 - 21.0 mi

Top 46%
×8
+106ft-24ft

Overall

13437

Males

9120

M60-64

9120

21M→35K

21.0 - 21.8 mi

Top 54%
×7
+17ft-86ft

Overall

15769

Males

10094

M60-64

10094

35K→23M

21.8 - 23.0 mi

Top 51%
×5
+23ft-63ft

Overall

14939

Males

9660

M60-64

9660

23M→24M

23.0 - 24.0 mi

Top 55%
×6
+12ft-82ft

Overall

15899

Males

10002

M60-64

10002

24M→40K

24.0 - 24.9 mi

Top 53%
×1
+6ft-20ft

Overall

15526

Males

9774

M60-64

9774

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1
+13ft-16ft

Overall

15411

Males

9707

M60-64

9707

25.2M→FINISH

25.2 - 26.2 mi

Top 58%
×2
+22ft-21ft

Overall

16851

Males

10367

M60-64

10367

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3165*
Passed By
502
Net Change
+2663
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19524
5K → 10K637*100+537#19524#18987
10K → 15K260*119+141#18987#18846
15K → 20K464*13+451#18846#18395
20K → HALF4426+18#18395#18377
HALF → 25K265*15+250#18377#18127
25K → 30K430*27+403#18127#17724
30K → 20M218*9+209#17724#17515
20M → 21M250*7+243#17515#17272
21M → 35K8621+65#17272#17207
35K → 23M19220+172#17207#17035
23M → 24M11141+70#17035#16965
24M → 40K8434+50#16965#16915
40K → 25.2M4912+37#16915#16878
25.2M → FINISH7558+17#16878#16861
TOTALS3165*502+2663

* 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

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing