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BOSTON MARATHON 2026

Jennifer Chang

Bib: 31943β€’F

NY

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0:00
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
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
32:48
3.11 mi
Rank: #27285
Start β†’ 5K
32:48 | 10:34/mi
10K
1:06:13
6.21 mi
Rank: #27323 (-38)
5K β†’ 10K
33:25 | 10:46/mi
15K
1:38:56
9.32 mi
Rank: #27111 (+212)
10K β†’ 15K
32:43 | 10:32/mi
20K
2:12:20
12.43 mi
Rank: #26966 (+145)
15K β†’ 20K
33:24 | 10:46/mi
HALF
2:19:25
13.11 mi
Rank: #26926 (+40)
20K β†’ HALF
7:05 | 10:24/mi
25K
2:46:00
15.53 mi
Rank: #26813 (+113)
HALF β†’ 25K
26:35 | 10:58/mi
30K
3:21:08
18.64 mi
Rank: #26646 (+167)
25K β†’ 30K
35:08 | 11:19/mi
20M
3:37:07
20.00 mi
Rank: #26614 (+32)
30K β†’ 20M
15:59 | 11:47/mi
21M
3:49:21
21.00 mi
Rank: #26547 (+67)
20M β†’ 21M
12:14 | 12:14/mi
35K
3:57:00
21.75 mi
Rank: #26469 (+78)
21M β†’ 35K
7:39 | 10:14/mi
23M
4:10:38
23.00 mi
Rank: #26371 (+98)
35K β†’ 23M
13:38 | 10:54/mi
24M
4:21:07
24.00 mi
Rank: #26280 (+91)
23M β†’ 24M
10:29 | 10:29/mi
40K
4:30:03
24.85 mi
Rank: #26170 (+110)
24M β†’ 40K
8:56 | 10:27/mi
25.2M
4:33:58
25.20 mi
Rank: #26135 (+35)
40K β†’ 25.2M
3:55 | 11:22/mi
FINISH
4:44:02
26.22 mi
Rank: #26064 (+71)
25.2M β†’ FINISH
10:04 | 9:53/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:19:25
Pace10:39 /mi
2nd Half
Distance13.11 mi
Time2:24:37
Pace11:02 /mi
πŸ“ŠPositive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:02:5732:4810:3432:48
10:34
-
10K
6.21 mi12:36:221:06:1310:4033:25
10:46
+0:12
15K
9.32 mi13:09:051:38:5610:3732:43
10:32
-0:14
20K
12.43 mi13:42:292:12:2010:3933:24
10:46
+0:14
HALF
13.11 mi13:49:342:19:2510:397:05
10:24
-0:22
25K
15.53 mi14:16:092:46:0010:4226:35
10:58
+0:34
30K
18.64 mi14:51:173:21:0810:4835:08
11:19
+0:21
20M
20.00 mi15:07:163:37:0710:5215:59
11:47
+0:28
21M
21.00 mi15:19:303:49:2110:5612:14
12:14
+0:27
35K
21.75 mi15:27:093:57:0010:547:39
10:14
-2:00
23M
23.00 mi15:40:474:10:3810:5413:38
10:54
+0:40
24M
24.00 mi15:51:164:21:0710:5310:29
10:29
-0:25
40K
24.85 mi16:00:124:30:0310:528:56
10:27
-0:02
25.2M
25.20 mi16:04:074:33:5810:533:55
11:22
+0:55
FINISH
26.22 mi16:14:114:44:0210:5110:04
9:53
-1:29

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

9:53 /mi

Average Pace

10:50 /mi

Slowest Pace

12:14 /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

33:44

12% of race

Time at Steady Pace

3:03:02

64% of race

Time at Slower Pace

1:07:16

24% of race

Average Pace: 10:50 /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 mi12:02:5732:4810:3432:48
10:34
#27285
10K
6.21 mi12:36:221:06:1310:4033:25
10:46
#27323
15K
9.32 mi13:09:051:38:5610:3732:43
10:32
#27111
20K
12.43 mi13:42:292:12:2010:3933:24
10:46
#26966
HALF
13.11 mi13:49:342:19:2510:397:05
10:24
#26926
25K
15.53 mi14:16:092:46:0010:4226:35
10:58
#26813
30K
18.64 mi14:51:173:21:0810:4835:08
11:19
#26646
20M
20.00 mi15:07:163:37:0710:5215:59
11:47
#26614
21M
21.00 mi15:19:303:49:2110:5612:14
12:14
#26547
35K
21.75 mi15:27:093:57:0010:547:39
10:14
#26469
23M
23.00 mi15:40:474:10:3810:5413:38
10:54
#26371
24M
24.00 mi15:51:164:21:0710:5310:29
10:29
#26280
40K
24.85 mi16:00:124:30:0310:528:56
10:27
#26170
25.2M
25.20 mi16:04:074:33:5810:533:55
11:22
#26135
FINISH
26.22 mi16:14:114:44:0210:5110:04
9:53
#26064
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi27285114391143926752(Top 92%)11157(Top 89%)11157(Top 195%)
10K6.21 mi3.10 mi27323-3811475-3611475-3627354(Top 94%)11507(Top 91%)11507(Top 201%)
15K9.32 mi3.11 mi27111+21211355+12011355+12026752(Top 92%)11157(Top 89%)11157(Top 195%)
20K12.43 mi3.11 mi26966+14511269+8611269+8626620(Top 92%)11111(Top 88%)11111(Top 194%)
HALF13.11 mi0.68 mi26926+4011252+1711252+1726467(Top 91%)11037(Top 88%)11037(Top 193%)
25K15.53 mi2.42 mi26813+11311207+4511207+4526284(Top 91%)10973(Top 87%)10973(Top 192%)
30K18.64 mi3.11 mi26646+16711129+7811129+7825860(Top 89%)10820(Top 86%)10820(Top 189%)
20M20.00 mi1.36 mi26614+3211121+811121+826095(Top 90%)11025(Top 88%)11025(Top 193%)
21M21.00 mi1.00 mi26547+6711107+1411107+1425405(Top 88%)10711(Top 85%)10711(Top 187%)
35K21.75 mi0.75 mi26469+7811064+4311064+4323738(Top 82%)9852(Top 78%)9852(Top 172%)
23M23.00 mi1.25 mi26371+9811022+4211022+4224282(Top 84%)10196(Top 81%)10196(Top 178%)
24M24.00 mi1.00 mi26280+9110985+3710985+3724087(Top 83%)10128(Top 81%)10128(Top 177%)
40K24.85 mi0.85 mi26170+11010934+5110934+5123106(Top 80%)9687(Top 77%)9687(Top 169%)
25.2M25.20 mi0.35 mi26135+3510924+1010924+1023260(Top 80%)9762(Top 78%)9762(Top 171%)
FINISH26.22 mi1.02 mi26064+7110898+2610898+2623528(Top 81%)9893(Top 79%)9893(Top 173%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
Γ—21
+97ft-345ft

Overall

26752

Females

11157

F18-39

11157

5K→10K

3.1 - 6.2 mi

Top 94%
Γ—5
+79ft-138ft

Overall

27354

Females

11507

F18-39

11507

10K→15K

6.2 - 9.3 mi

Top 92%
Γ—3
+67ft-78ft

Overall

26752

Females

11157

F18-39

11157

15K→20K

9.3 - 12.4 mi

Top 92%
Γ—5
+106ft-86ft

Overall

26620

Females

11111

F18-39

11111

20K→HALF

12.4 - 13.1 mi

Top 91%
Γ—2
+19ft-37ft

Overall

26467

Females

11037

F18-39

11037

HALF→25K

13.1 - 15.5 mi

Top 91%
Γ—4
+66ft-88ft

Overall

26284

Females

10973

F18-39

10973

25K→30K

15.5 - 18.6 mi

Top 89%
Γ—9
+181ft-148ft

Overall

25860

Females

10820

F18-39

10820

30K→20M

18.6 - 20.0 mi

Top 90%
Γ—5
+64ft-50ft

Overall

26095

Females

11025

F18-39

11025

20M→21M

20.0 - 21.0 mi

Top 88%
Γ—8
+106ft-24ft

Overall

25405

Females

10711

F18-39

10711

21M→35K

21.0 - 21.8 mi

Top 82%
Γ—7
+17ft-86ft

Overall

23738

Females

9852

F18-39

9852

35K→23M

21.8 - 23.0 mi

Top 84%
Γ—5
+23ft-63ft

Overall

24282

Females

10196

F18-39

10196

23M→24M

23.0 - 24.0 mi

Top 83%
Γ—6
+12ft-82ft

Overall

24087

Females

10128

F18-39

10128

24M→40K

24.0 - 24.9 mi

Top 80%
Γ—1
+6ft-20ft

Overall

23106

Females

9687

F18-39

9687

40K→25.2M

24.9 - 25.2 mi

Top 80%
Γ—1
+13ft-16ft

Overall

23260

Females

9762

F18-39

9762

25.2M→FINISH

25.2 - 26.2 mi

Top 81%
Γ—2
+22ft-21ft

Overall

23528

Females

9893

F18-39

9893

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Position interactions are being recalculated

Started about 6 hours ago. This usually takes 10-20 minutes. Please check back shortly.

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