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BOSTON MARATHON 2026

Jin Lee

Bib: 23521•F

PA

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Top 48%
Age Group (F50-54)
#0 / 1233
Top 48%
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
27:02
3.11 mi
Rank: #21205
Start → 5K
27:02 | 8:43/mi
10K
53:24
6.21 mi
Rank: #20721 (+484)
5K → 10K
26:22 | 8:30/mi
15K
1:19:21
9.32 mi
Rank: #20211 (+510)
10K → 15K
25:57 | 8:22/mi
20K
1:45:26
12.43 mi
Rank: #19829 (+382)
15K → 20K
26:05 | 8:24/mi
HALF
1:51:03
13.11 mi
Rank: #19769 (+60)
20K → HALF
5:37 | 8:15/mi
25K
2:11:36
15.53 mi
Rank: #19575 (+194)
HALF → 25K
20:33 | 8:29/mi
30K
2:39:09
18.64 mi
Rank: #19442 (+133)
25K → 30K
27:33 | 8:53/mi
20M
2:51:14
20.00 mi
Rank: #19342 (+100)
30K → 20M
12:05 | 8:54/mi
21M
3:00:44
21.00 mi
Rank: #19278 (+64)
20M → 21M
9:30 | 9:30/mi
35K
3:07:08
21.75 mi
Rank: #19207 (+71)
21M → 35K
6:24 | 8:34/mi
23M
3:18:27
23.00 mi
Rank: #19213 (-6)
35K → 23M
11:19 | 9:03/mi
24M
3:26:55
24.00 mi
Rank: #19082 (+131)
23M → 24M
8:28 | 8:28/mi
40K
3:34:26
24.85 mi
Rank: #19007 (+75)
24M → 40K
7:31 | 8:48/mi
25.2M
3:37:47
25.20 mi
Rank: #18995 (+12)
40K → 25.2M
3:21 | 9:43/mi
FINISH
3:46:34
26.22 mi
Rank: #18983 (+12)
25.2M → FINISH
8:47 | 8:38/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:51:03
Pace8:29 /mi
2nd Half
Distance13.11 mi
Time1:55:31
Pace8:49 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:30:0327:028:4327:02
8:43
-
10K
6.21 mi11:56:2553:248:3626:22
8:30
-0:13
15K
9.32 mi12:22:221:19:218:3125:57
8:22
-0:08
20K
12.43 mi12:48:271:45:268:3026:05
8:24
+0:02
HALF
13.11 mi12:54:041:51:038:295:37
8:15
-0:09
25K
15.53 mi13:14:372:11:368:2920:33
8:29
+0:14
30K
18.64 mi13:42:102:39:098:3327:33
8:53
+0:24
20M
20.00 mi13:54:152:51:148:3412:05
8:54
+0:01
21M
21.00 mi14:03:453:00:448:379:30
9:30
+0:36
35K
21.75 mi14:10:093:07:088:376:24
8:34
-0:56
23M
23.00 mi14:21:283:18:278:3811:19
9:03
+0:29
24M
24.00 mi14:29:563:26:558:388:28
8:28
-0:35
40K
24.85 mi14:37:273:34:268:387:31
8:48
+0:20
25.2M
25.20 mi14:40:483:37:478:393:21
9:43
+0:55
FINISH
26.22 mi14:49:353:46:348:398:47
8:38
-1:05

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

8:15 /mi

Average Pace

8:39 /mi

Slowest Pace

9:43 /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

3:33:43

94% of race

Time at Steady Pace

12:51

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:38 /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 mi11:30:0327:028:4327:02
8:43
#21205
10K
6.21 mi11:56:2553:248:3626:22
8:30
#20721
15K
9.32 mi12:22:221:19:218:3125:57
8:22
#20211
20K
12.43 mi12:48:271:45:268:3026:05
8:24
#19829
HALF
13.11 mi12:54:041:51:038:295:37
8:15
#19769
25K
15.53 mi13:14:372:11:368:2920:33
8:29
#19575
30K
18.64 mi13:42:102:39:098:3327:33
8:53
#19442
20M
20.00 mi13:54:152:51:148:3412:05
8:54
#19342
21M
21.00 mi14:03:453:00:448:379:30
9:30
#19278
35K
21.75 mi14:10:093:07:088:376:24
8:34
#19207
23M
23.00 mi14:21:283:18:278:3811:19
9:03
#19213
24M
24.00 mi14:29:563:26:558:388:28
8:28
#19082
40K
24.85 mi14:37:273:34:268:387:31
8:48
#19007
25.2M
25.20 mi14:40:483:37:478:393:21
9:43
#18995
FINISH
26.22 mi14:49:353:46:348:398:47
8:38
#18983
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi212058284828419319(Top 67%)7221(Top 57%)7221(Top 586%)
10K6.21 mi3.10 mi20721+4848003+2818003+28120268(Top 70%)7734(Top 61%)7734(Top 627%)
15K9.32 mi3.11 mi20211+5107725+2787725+27819319(Top 67%)7221(Top 57%)7221(Top 586%)
20K12.43 mi3.11 mi19829+3827535+1907535+19018700(Top 64%)6911(Top 55%)6911(Top 561%)
HALF13.11 mi0.68 mi19769+607498+377498+3718694(Top 64%)6884(Top 55%)6884(Top 558%)
25K15.53 mi2.42 mi19575+1947396+1027396+10218444(Top 64%)6816(Top 54%)6816(Top 553%)
30K18.64 mi3.11 mi19442+1337354+427354+4218929(Top 65%)7173(Top 57%)7173(Top 582%)
20M20.00 mi1.36 mi19342+1007314+407314+4018462(Top 64%)7012(Top 56%)7012(Top 569%)
21M21.00 mi1.00 mi19278+647288+267288+2618535(Top 64%)7084(Top 56%)7084(Top 575%)
35K21.75 mi0.75 mi19207+717258+307258+3017924(Top 62%)6858(Top 55%)6858(Top 556%)
23M23.00 mi1.25 mi19213-67293-357293-3518709(Top 64%)7325(Top 58%)7325(Top 594%)
24M24.00 mi1.00 mi19082+1317239+547239+5416741(Top 58%)6323(Top 50%)6323(Top 513%)
40K24.85 mi0.85 mi19007+757213+267213+2617395(Top 60%)6736(Top 54%)6736(Top 546%)
25.2M25.20 mi0.35 mi18995+127218-57218-518316(Top 63%)7208(Top 57%)7208(Top 585%)
FINISH26.22 mi1.02 mi18983+127221-37221-318784(Top 65%)7453(Top 59%)7453(Top 604%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21
+97ft-345ft

Overall

19319

Females

7221

F50-54

7221

5K→10K

3.1 - 6.2 mi

Top 70%
×5
+79ft-138ft

Overall

20268

Females

7734

F50-54

7734

10K→15K

6.2 - 9.3 mi

Top 67%
×3
+67ft-78ft

Overall

19319

Females

7221

F50-54

7221

15K→20K

9.3 - 12.4 mi

Top 64%
×5
+106ft-86ft

Overall

18700

Females

6911

F50-54

6911

20K→HALF

12.4 - 13.1 mi

Top 64%
×2
+19ft-37ft

Overall

18694

Females

6884

F50-54

6884

HALF→25K

13.1 - 15.5 mi

Top 64%
×4
+66ft-88ft

Overall

18444

Females

6816

F50-54

6816

25K→30K

15.5 - 18.6 mi

Top 65%
×9
+181ft-148ft

Overall

18929

Females

7173

F50-54

7173

30K→20M

18.6 - 20.0 mi

Top 64%
×5
+64ft-50ft

Overall

18462

Females

7012

F50-54

7012

20M→21M

20.0 - 21.0 mi

Top 64%
×8
+106ft-24ft

Overall

18535

Females

7084

F50-54

7084

21M→35K

21.0 - 21.8 mi

Top 62%
×7
+17ft-86ft

Overall

17924

Females

6858

F50-54

6858

35K→23M

21.8 - 23.0 mi

Top 64%
×5
+23ft-63ft

Overall

18709

Females

7325

F50-54

7325

23M→24M

23.0 - 24.0 mi

Top 58%
×6
+12ft-82ft

Overall

16741

Females

6323

F50-54

6323

24M→40K

24.0 - 24.9 mi

Top 60%
×1
+6ft-20ft

Overall

17395

Females

6736

F50-54

6736

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1
+13ft-16ft

Overall

18316

Females

7208

F50-54

7208

25.2M→FINISH

25.2 - 26.2 mi

Top 65%
×2
+22ft-21ft

Overall

18784

Females

7453

F50-54

7453

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2899
Passed By
677
Net Change
+2222
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21205
5K → 10K613129+484#21205#20721
10K → 15K56353+510#20721#20211
15K → 20K39917+382#20211#19829
20K → HALF699+60#19829#19769
HALF → 25K23137+194#19769#19575
25K → 30K246113+133#19575#19442
30K → 20M13737+100#19442#19342
20M → 21M10945+64#19342#19278
21M → 35K8817+71#19278#19207
35K → 23M8591-6#19207#19213
23M → 24M14514+131#19213#19082
24M → 40K10227+75#19082#19007
40K → 25.2M4230+12#19007#18995
25.2M → FINISH7058+12#18995#18983
TOTALS2899677+2222
📊

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